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ClientLauncher.java
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ClientLauncher.java
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package launcher.client;
import java.io.IOException;
import java.lang.ProcessBuilder.Redirect;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodType;
import java.net.URL;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes;
import java.nio.file.attribute.PosixFilePermission;
import java.security.interfaces.RSAPublicKey;
import java.util.Collection;
import java.util.Collections;
import java.util.EnumSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.UUID;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.regex.Pattern;
import com.eclipsesource.json.Json;
import com.eclipsesource.json.JsonObject;
import com.eclipsesource.json.WriterConfig;
import launcher.Launcher;
import launcher.Launcher.Config;
import launcher.LauncherAPI;
import launcher.client.ClientProfile.Version;
import launcher.hasher.DirWatcher;
import launcher.hasher.FileNameMatcher;
import launcher.hasher.HashedDir;
import launcher.helper.CommonHelper;
import launcher.helper.IOHelper;
import launcher.helper.JVMHelper;
import launcher.helper.JVMHelper.OS;
import launcher.helper.LogHelper;
import launcher.helper.SecurityHelper;
import launcher.helper.VerifyHelper;
import launcher.request.update.LauncherRequest;
import launcher.serialize.HInput;
import launcher.serialize.HOutput;
import launcher.serialize.signed.SignedObjectHolder;
import launcher.serialize.stream.StreamObject;
public final class ClientLauncher {
private static final String[] EMPTY_ARRAY = new String[0];
private static final String MAGICAL_INTEL_OPTION = "-XX:HeapDumpPath=ThisTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump";
private static final Set<PosixFilePermission> BIN_POSIX_PERMISSIONS = Collections.unmodifiableSet(EnumSet.of(
PosixFilePermission.OWNER_READ, PosixFilePermission.OWNER_WRITE, PosixFilePermission.OWNER_EXECUTE, // Owner
PosixFilePermission.GROUP_READ, PosixFilePermission.GROUP_EXECUTE, // Group
PosixFilePermission.OTHERS_READ, PosixFilePermission.OTHERS_EXECUTE // Others
));
// Constants
private static final Path NATIVES_DIR = IOHelper.toPath("natives");
private static final Path RESOURCEPACKS_DIR = IOHelper.toPath("resourcepacks");
private static final Pattern UUID_PATTERN = Pattern.compile("-", Pattern.LITERAL);
// Authlib constants
@LauncherAPI public static final String SKIN_URL_PROPERTY = "skinURL";
@LauncherAPI public static final String SKIN_DIGEST_PROPERTY = "skinDigest";
@LauncherAPI public static final String CLOAK_URL_PROPERTY = "cloakURL";
@LauncherAPI public static final String CLOAK_DIGEST_PROPERTY = "cloakDigest";
// Used to determine from clientside is launched from launcher
private static final AtomicBoolean LAUNCHED = new AtomicBoolean(false);
private ClientLauncher() {
}
@LauncherAPI
public static boolean isLaunched() {
return LAUNCHED.get();
}
public static String jvmProperty(String name, String value) {
return String.format("-D%s=%s", name, value);
}
@LauncherAPI
public static Process launch(Path jvmDir, SignedObjectHolder<HashedDir> jvmHDir,
SignedObjectHolder<HashedDir> assetHDir, SignedObjectHolder<HashedDir> clientHDir,
SignedObjectHolder<ClientProfile> profile, Params params, boolean pipeOutput) throws Throwable {
// Write params file (instead of CLI; Mustdie32 API can't handle command line > 32767 chars)
LogHelper.debug("Writing ClientLauncher params file");
Path paramsFile = Files.createTempFile("ClientLauncherParams", ".bin");
try (HOutput output = new HOutput(IOHelper.newOutput(paramsFile))) {
params.write(output);
profile.write(output);
// Write hdirs
jvmHDir.write(output);
assetHDir.write(output);
clientHDir.write(output);
}
// Resolve java bin and set permissions
LogHelper.debug("Resolving JVM binary");
Path javaBin = IOHelper.resolveJavaBin(jvmDir);
if (IOHelper.POSIX) {
Files.setPosixFilePermissions(javaBin, BIN_POSIX_PERMISSIONS);
}
// Fill CLI arguments
List<String> args = new LinkedList<>();
args.add(javaBin.toString());
args.add(MAGICAL_INTEL_OPTION);
if (params.ram > 0 && params.ram <= JVMHelper.RAM) {
args.add("-Xms" + params.ram + 'M');
args.add("-Xmx" + params.ram + 'M');
}
args.add(jvmProperty(LogHelper.DEBUG_PROPERTY, Boolean.toString(LogHelper.isDebugEnabled())));
if (Config.ADDRESS_OVERRIDE != null) {
args.add(jvmProperty(Config.ADDRESS_OVERRIDE_PROPERTY, Config.ADDRESS_OVERRIDE));
}
if (JVMHelper.OS_TYPE == OS.MUSTDIE && JVMHelper.OS_VERSION.startsWith("10.")) {
LogHelper.debug("MustDie 10 fix is applied");
args.add(jvmProperty("os.name", "Windows 10"));
args.add(jvmProperty("os.version", "10.0"));
}
// Add classpath and main class
Collections.addAll(args, profile.object.getJvmArgs());
Collections.addAll(args, "-classpath", IOHelper.getCodeSource(ClientLauncher.class).toString(), ClientLauncher.class.getName());
args.add(paramsFile.toString()); // Add params file path to args
// Print commandline debug message
LogHelper.debug("Commandline: " + args);
// Build client process
LogHelper.debug("Launching client instance");
ProcessBuilder builder = new ProcessBuilder(args);
builder.directory(params.clientDir.toFile());
builder.inheritIO();
Map<String, String> env = builder.environment();
env.put("_JAVA_OPTS", "");
env.put("_JAVA_OPTIONS", "");
env.put("JAVA_OPTS", "");
env.put("JAVA_OPTIONS", "");
if (pipeOutput) {
builder.redirectErrorStream(true);
builder.redirectOutput(Redirect.PIPE);
}
// Let's rock!
return builder.start();
}
@LauncherAPI
public static void main(String... args) throws Throwable {
SecurityHelper.verifyCertificates(ClientLauncher.class);
JVMHelper.verifySystemProperties(ClientLauncher.class, true);
LogHelper.printVersion("Client Launcher");
// Resolve params file
VerifyHelper.verifyInt(args.length, l -> l >= 1, "Missing args: <paramsFile>");
Path paramsFile = IOHelper.toPath(args[0]);
// Read and delete params file
LogHelper.debug("Reading ClientLauncher params file");
Params params;
SignedObjectHolder<ClientProfile> profile;
SignedObjectHolder<HashedDir> jvmHDir, assetHDir, clientHDir;
RSAPublicKey publicKey = Launcher.getConfig().publicKey;
try (HInput input = new HInput(IOHelper.newInput(paramsFile))) {
params = new Params(input);
profile = new SignedObjectHolder<>(input, publicKey, ClientProfile.RO_ADAPTER);
// Read hdirs
jvmHDir = new SignedObjectHolder<>(input, publicKey, HashedDir::new);
assetHDir = new SignedObjectHolder<>(input, publicKey, HashedDir::new);
clientHDir = new SignedObjectHolder<>(input, publicKey, HashedDir::new);
} finally {
Files.delete(paramsFile);
}
// Verify ClientLauncher sign and classpath
LogHelper.debug("Verifying ClientLauncher sign and classpath");
SecurityHelper.verifySign(LauncherRequest.BINARY_PATH, params.launcherSign, publicKey);
URL[] classpath = JVMHelper.getClassPath();
for (URL classpathURL : classpath) {
Path file = Paths.get(classpathURL.toURI());
if (!file.startsWith(IOHelper.JVM_DIR) && !file.equals(LauncherRequest.BINARY_PATH)) {
throw new SecurityException(String.format("Forbidden classpath entry: '%s'", file));
}
}
// Start client with WatchService monitoring
boolean digest = !profile.object.isUpdateFastCheck();
LogHelper.debug("Starting JVM and client WatchService");
FileNameMatcher assetMatcher = profile.object.getAssetUpdateMatcher();
FileNameMatcher clientMatcher = profile.object.getClientUpdateMatcher();
try (DirWatcher jvmWatcher = new DirWatcher(IOHelper.JVM_DIR, jvmHDir.object, null, digest); // JVM Watcher
DirWatcher assetWatcher = new DirWatcher(params.assetDir, assetHDir.object, assetMatcher, digest);
DirWatcher clientWatcher = new DirWatcher(params.clientDir, clientHDir.object, clientMatcher, digest)) {
// Verify current state of all dirs
verifyHDir(IOHelper.JVM_DIR, jvmHDir.object, null, digest);
verifyHDir(params.assetDir, assetHDir.object, assetMatcher, digest);
verifyHDir(params.clientDir, clientHDir.object, clientMatcher, digest);
// Start WatchService, and only then client
CommonHelper.newThread("JVM Directory Watcher", true, jvmWatcher).start();
CommonHelper.newThread("Asset Directory Watcher", true, assetWatcher).start();
CommonHelper.newThread("Client Directory Watcher", true, clientWatcher).start();
launch(profile.object, params);
}
}
@LauncherAPI
public static String toHash(UUID uuid) {
return UUID_PATTERN.matcher(uuid.toString()).replaceAll("");
}
@LauncherAPI
public static void verifyHDir(Path dir, HashedDir hdir, FileNameMatcher matcher, boolean digest) throws IOException {
if (matcher != null) {
matcher = matcher.verifyOnly();
}
// Hash directory and compare (ignore update-only matcher entries, it will break offline-mode)
HashedDir currentHDir = new HashedDir(dir, matcher, false, digest);
if (!hdir.diff(currentHDir, matcher).isSame()) {
throw new SecurityException(String.format("Forbidden modification: '%s'", IOHelper.getFileName(dir)));
}
}
private static void addClientArgs(Collection<String> args, ClientProfile profile, Params params) {
PlayerProfile pp = params.pp;
// Add version-dependent args
Version version = profile.getVersion();
Collections.addAll(args, "--username", pp.username);
if (version.compareTo(Version.MC172) >= 0) {
Collections.addAll(args, "--uuid", toHash(pp.uuid));
Collections.addAll(args, "--accessToken", params.accessToken);
// Add 1.7.10+ args (user properties, asset index)
if (version.compareTo(Version.MC1710) >= 0) {
// Add user properties
Collections.addAll(args, "--userType", "mojang");
JsonObject properties = Json.object();
if (pp.skin != null) {
properties.add(SKIN_URL_PROPERTY, Json.array(pp.skin.url));
properties.add(SKIN_DIGEST_PROPERTY, Json.array(SecurityHelper.toHex(pp.skin.digest)));
}
if (pp.cloak != null) {
properties.add(CLOAK_URL_PROPERTY, Json.array(pp.cloak.url));
properties.add(CLOAK_DIGEST_PROPERTY, Json.array(SecurityHelper.toHex(pp.cloak.digest)));
}
Collections.addAll(args, "--userProperties", properties.toString(WriterConfig.MINIMAL));
// Add asset index
Collections.addAll(args, "--assetIndex", profile.getAssetIndex());
}
} else {
Collections.addAll(args, "--session", params.accessToken);
}
// Add version and dirs args
Collections.addAll(args, "--version", profile.getVersion().name);
Collections.addAll(args, "--gameDir", params.clientDir.toString());
Collections.addAll(args, "--assetsDir", params.assetDir.toString());
Collections.addAll(args, "--resourcePackDir", params.clientDir.resolve(RESOURCEPACKS_DIR).toString());
if (version.compareTo(Version.MC194) >= 0) { // Just to show it in debug screen
Collections.addAll(args, "--versionType", "Launcher v" + Launcher.VERSION);
}
// Add server args
if (params.autoEnter) {
Collections.addAll(args, "--server", profile.getServerAddress());
Collections.addAll(args, "--port", Integer.toString(profile.getServerPort()));
}
// Add window size args
if (params.fullScreen) {
Collections.addAll(args, "--fullscreen", Boolean.toString(true));
}
if (params.width > 0 && params.height > 0) {
Collections.addAll(args, "--width", Integer.toString(params.width));
Collections.addAll(args, "--height", Integer.toString(params.height));
}
}
private static void addClientLegacyArgs(Collection<String> args, ClientProfile profile, Params params) {
args.add(params.pp.username);
args.add(params.accessToken);
// Add args for tweaker
Collections.addAll(args, "--version", profile.getVersion().name);
Collections.addAll(args, "--gameDir", params.clientDir.toString());
Collections.addAll(args, "--assetsDir", params.assetDir.toString());
}
private static void launch(ClientProfile profile, Params params) throws Throwable {
// Add natives path
JVMHelper.addNativePath(params.clientDir.resolve(NATIVES_DIR));
// Add client args
Collection<String> args = new LinkedList<>();
if (profile.getVersion().compareTo(Version.MC164) >= 0) {
addClientArgs(args, profile, params);
} else {
addClientLegacyArgs(args, profile, params);
}
Collections.addAll(args, profile.getClientArgs());
LogHelper.debug("Args: " + args);
// Add client classpath
URL[] classPath = resolveClassPath(params.clientDir, profile.getClassPath());
for (URL url : classPath) {
JVMHelper.addClassPath(url);
}
// Resolve main class and method
Class<?> mainClass = Class.forName(profile.getMainClass());
MethodHandle mainMethod = JVMHelper.LOOKUP.findStatic(mainClass, "main", MethodType.methodType(void.class, String[].class))
.asFixedArity();
// Invoke main method with exception wrapping
LAUNCHED.set(true);
JVMHelper.fullGC();
System.setProperty("minecraft.launcher.brand", "sashok724's Launcher v3");
System.setProperty("minecraft.launcher.version", Launcher.VERSION);
System.setProperty("minecraft.applet.TargetDirectory", params.clientDir.toString()); // For 1.5.2
mainMethod.invoke((Object) args.toArray(EMPTY_ARRAY));
}
private static URL[] resolveClassPath(Path clientDir, String... classPath) throws IOException {
Collection<Path> result = new LinkedList<>();
for (String classPathEntry : classPath) {
Path path = clientDir.resolve(IOHelper.toPath(classPathEntry));
if (IOHelper.isDir(path)) { // Recursive walking and adding
IOHelper.walk(path, new ClassPathFileVisitor(result), false);
continue;
}
result.add(path);
}
return result.stream().map(IOHelper::toURL).toArray(URL[]::new);
}
public static final class Params extends StreamObject {
// Client paths
@LauncherAPI public final Path assetDir;
@LauncherAPI public final Path clientDir;
// Client params
@LauncherAPI public final PlayerProfile pp;
@LauncherAPI public final String accessToken;
@LauncherAPI public final boolean autoEnter;
@LauncherAPI public final boolean fullScreen;
@LauncherAPI public final int ram;
@LauncherAPI public final int width;
@LauncherAPI public final int height;
private final byte[] launcherSign;
@LauncherAPI
public Params(byte[] launcherSign, Path assetDir, Path clientDir, PlayerProfile pp, String accessToken,
boolean autoEnter, boolean fullScreen, int ram, int width, int height) {
this.launcherSign = launcherSign.clone();
// Client paths
this.assetDir = assetDir;
this.clientDir = clientDir;
// Client params
this.pp = pp;
this.accessToken = SecurityHelper.verifyToken(accessToken);
this.autoEnter = autoEnter;
this.fullScreen = fullScreen;
this.ram = ram;
this.width = width;
this.height = height;
}
@LauncherAPI
public Params(HInput input) throws IOException {
launcherSign = input.readByteArray(-SecurityHelper.RSA_KEY_LENGTH);
// Client paths
assetDir = IOHelper.toPath(input.readString(0));
clientDir = IOHelper.toPath(input.readString(0));
// Client params
pp = new PlayerProfile(input);
accessToken = SecurityHelper.verifyToken(input.readASCII(-SecurityHelper.TOKEN_STRING_LENGTH));
autoEnter = input.readBoolean();
fullScreen = input.readBoolean();
ram = input.readVarInt();
width = input.readVarInt();
height = input.readVarInt();
}
@Override
public void write(HOutput output) throws IOException {
output.writeByteArray(launcherSign, -SecurityHelper.RSA_KEY_LENGTH);
// Client paths
output.writeString(assetDir.toString(), 0);
output.writeString(clientDir.toString(), 0);
// Client params
pp.write(output);
output.writeASCII(accessToken, -SecurityHelper.TOKEN_STRING_LENGTH);
output.writeBoolean(autoEnter);
output.writeBoolean(fullScreen);
output.writeVarInt(ram);
output.writeVarInt(width);
output.writeVarInt(height);
}
}
private static final class ClassPathFileVisitor extends SimpleFileVisitor<Path> {
private final Collection<Path> result;
private ClassPathFileVisitor(Collection<Path> result) {
this.result = result;
}
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
if (IOHelper.hasExtension(file, "jar") || IOHelper.hasExtension(file, "zip")) {
result.add(file);
}
return super.visitFile(file, attrs);
}
}
}
// She's here since first commit, there's no any reasons to remove :D
// ++oyyysssssssssssooooooo++++++++/////:::::-------------................----:::----::+osssso+///+++++ooys/:/+ssssyyssyooooooo+++////:::::::::-::///++ossyhdddddddhhys/----::::::::::::::/:////////////
// ++oyyssssssssssoooooooo++++++++//////:::::--------------------------------:::::-:::/+oo+//://+oo+//syysssssyyyyyhyyyssssssoo+++///::--:----:--:://++osyyhdddmddmdhys/------:::::::::::::::///////////
// ++syyssssssssssoooooooo++++++++///////:::::::::::::::-----------------------::--::/++++/:--::/+++//osysshhhhyhhdyyyyyssyssoo++//::-------------::/+++oyhyhdddmddmdhy+--------::::::::::::::://///////
// ++ssssssssssssooooooooo++++++///////::::::::-------------------------------------::/+//:----://+//+oyhhhddhhdhhhyhyyyyhysoo+//::----------------://++oshhhhmddmddmhhs:---------:::::::::::::::///////
// ++sssssssssssooooooooo++++////::::::::::------------------------------------:---:::///:-----://++osyhddddhdddhhhhhyyhdysso+/::-------------------://+ooyhhddmddmdmdhy/----------::::::::::::::://////
// ++sssssssssoooooooo+++////::::::::::-------------------------------------::///::::///::--::/++osyhhddmmdhddddhhhhhyhdhyso+/:----------------------::/++oyhdhdmmmmmddho-------------::::::::::::://///
// /+ssssssssosooo+++/////::::::::::----------------------------------:::::://+++ooossso////++oosyhddddmmdhddddhhhhhhhdhyddhs+:-----------------------::/++syhddmmmmdddho--------------::::::::::::::///
// /+sssssssooo+++//////::::::::::-------------------------------:::://++++ooooooooooooo+/+oosyyhhddddmmddddddhhhhhhhdhyyssyyhs+::-------------::://++/+/o++shddddmmmddh+----------------::::::::::::://
// /+sssooso++++/////::::::::::::------------------------::::::///++o++//:--...............-/osyyhddmmmmddddhhhhhyyhdhhdmddhysoso::--------::/osyyyssyyssssoosdmddddddy+:-------------------:::::::::::/
// /+sssooso+++////::::::::::::--------------------:::::////++o+//:-......................--+ossydddmmdmmdddhhhhyyhddyyydmhhooo++/:-------::/+oshhhyso+/://++ohmmmdhhy+:---------------------:::::::::::
// /+sooooso++/////:::::::::::--------------:::::///+++oo+//:-............................-/+oyydddmmddddddhhhyyyhhhyysosss+:/+///:--.---://+o/ohhdhoyyo+/://+ymmdhsyo:------------------------:::::::::
// /+ooooooso+////:::::::::------------:::::///++oooo/:-..................................:/oyyyhdmdddddddhhhhyyhyss++///:::/::::/:-...--::://-/shy+-:+s+/::/+hdhysos/--------------------------::::::::
// /+oooooooo++///::::::::::-:----:::::::///+oosyy/-.....................................-/+syhhddddddddhhhhhhhysso+/::::-----:::::-..------:::::////:::::::/sdysso+o:..----.--------------------:::::::
// /+ooooooooo++///:::::::::::::::::::///++osyhmmdo:-...................................-/+syyhdddddddddhdddmmhys+/::----------:::--..---------::::::-----::+dhsoso++:....--.--..----------------:::::::
// /ooooooooooo++///::::::://///++oooosssyydddhdhs+so/+++:-............................./+syyhdddddddddddddmmmhs+//:------------:--..---------------------:/hdsooso+/-....--.....------------------:::::
// /oooooooo++++o++//:::::::///++ossso+ooosysos++o/so//////--..........................:yhddhdddmmdddmmmdddmddhs+/::----------:::---.--------------------:/hdhsooso+/-.....-........----------------::::
// /ooooooo+++++++++//:::::::::/+o+ooooyyso+oo/++o/oo///://////::--...................-sdhddhddmmdhdmmmddhhdmNds+/:::--------:/:------------------------::sdhyooyso+:-...............---------------::::
// /ooooooo+++++++++++//:::://+++++ssyys+/+y+///++/so///:://://::::/---://............-smdddddmmhyhhdddhhsydmNmyo//:::------://:--------:::------------::odhysshyo++-................---------------::::
// /oooooo+++++++++++/+o+/++++++++ohhoo+//yo//:/+//so:/:////::+////+///+so/++/:--------:hdddmdhyssyhhddhsosdmNmho+/:::------////:------::::-----------::+hdhhhyyo+o/-................----------------:::
// /ooo++o++++++++++//+oooooo++++oyyoo+//os+////+//so/://::////+///+//+ssooo+++++++/++//odhhhyoooosyhhhysoodmmNds+//:::-----:++o+/:::/+//:----------::/+ydhyyyyo+oo:...................--------------:::
// /oooo+++++++++++/////+ossoooooss++////+so/::++//os://:/::://////++/os+++++++/++++++++osyso++++osyyyyssoodmmmmyo+/::::-----::/++++////:--------::::/+shhysoso+ss/.....................------------:::/
// +ooo++++++++++/////////+oooosso////:::+oso/:/+//oy+//:///://////+//o+/++////////++++ooooo++++ossyhhsoosodmmmmds+//////::::::::::::---------::::://+shhyso+++ss:........................----------:://
// +ooo++++++++++///////////////++++//:::/++o////+/+yo//////////////:/o:/+//////////+oooo+oooo++ooyyyyysssshmmmmmds+//////+++++///:::::::::::::::://+syhhso+++oo/..........................---------::/+
// +o+o+++++++++///////////////::///++//:::/+///////oy+///://///////-++:+/://://::/++so++ooooooossysyyhhssyhmmmmNmds+//:::/++++oooooooo+++//:::::/+oosyys++oso+/-..........................--------:://+
// +oo+++++++++/////////////////:::://++//////:/+/:/+ss+//////++///:://///::://:://++o++ossssyyssosyyhhyssydmmmmNNmmyo//////++///////////::::::/+oooosossssyyo/-...........................--------://++
// +++++++++++//////////////::/::::::::///++/:///:://oss//:////++//::+/////:::/:://+so++ssyyhhhoosyyyysoosydmmmNNmmmmho+//::////+++++///:::::/+osssssshmdssyyo-............................-------::/+++
// +oo++++++++++/////////////:/::::::::::://+/////:/:+oso+:////++/://+++++++/::///+oooosyyyhhhsossssso+osshmmmmNmmmmmdys+/::::---:::::::::/+osyyyssyddmmhsyhy+-.............................-----:://+++
// +o++++++++++///////////:/::::::::::::---::/+++/::::+oso/::/://:://++++o+:::+//++ssooyyyhhyyssssoo++sssymmmmNmmmmmmhysso/:::::-----:::/+yhhhyyyhddmmdhhyhys+:-............................-----://+++/
// ++++++++++++/////////////::::::::----------://////:/+oso+/:::::://+++o+//+ooooo+++oshyhhhysssso++ososhmNNNNNmmmmhhyoooooo+/////://+oyhmmdhhyhdddddhyyysssoo+:--.........................-----://++//:
// o++++++++++/////////////:::::::::-------------:////::/ooo/:::::///+os++ssyyyyssssssyhhhysssssoooooosdmNNNNNmmmdhsss+++ooooooossyyhdmmmmdhyysyhhyssooooossooys+//:--.....................----::/+++/::
// o+++++++++//////////////::::::::----------.....-://////+oo+:://://ooooyhhhhdddhhhyhhhhyssssssssooshmNNNNNNNmmmdooo++//++oooossshddmmmddys++ooo+/+++ossyhhyyyyysoo+//:--.................----://++/:::
// ++++++++++//////////////:::::::--------..........-::///:/+++::::/+o+/ohhhhhhyyyyyyhhhysyyysyyyyhdmNNNNNNNNmmmhso++//:///+ooossydddmmmddhyysso+/++ossshddddddhyyso++++////::::::--.......---://++/:-::
// o+++++++++///////////////:::::::------..............-:////++/:///+osoyhhhhyssssyhhdddhhhyyhhdmmmmmmmmmmmmmmmho+oo+/::::///+++oyhhdmmmddhhysoo+oosyhhdmmmddddhhyssoo+++++++++++///:-....---://++//-:::
// +++++++++//+///////////:/::::::------.................-://////////+ossyyyyyhhhhddddhhhhddmmmmddddmmmmmmmmmdyo+++os/::::::://+ydhhmmmddddddddddmmmmmmmmmmmmddhyyysoo+o+++//++////::::-----::/++//--::+
// +++++++++///////////////:::::::------....................-:///++/::+syyyhhhhhhhhhhhhddmmmddddddddmmmmmmmmdso++++++++/:::://ohdhydmmddddhdmmmmmmhhdmmmmmmmmmhhyyyysooso+/+////////////:::::/+++/:-::++
// ++++++++++//////////////:/:::::------......................-:/+/:::+shhdhhhhhhhhhdddmmmddddhhhhhddmmmmmmdyo+++++/+/++++++oydmdhyhdddhhsssydmdmmddddddmmmmmdhhsyysoso++++///+//////://+//////+/:-::/o:
// ++++++++++/////////////://:::::------.........................::::/osdmmmmmddddddddddhhysssooosyhdmmmmmdsooo+o++/+++++++shmmddhyyhmhso/+shhdmddhhhdmmmmddhhyyysoooo//+++/://///:/+//+///////::-::/o/:
// +++++++++++////////////:/::::::-----..........................-:://+oymmmmmddddhhhhhhhhyysoo+osyhhdmdhyoo/++so++++oooooohmmmmdhhyhdh+//+ydhyssshddmmdhhhyyssso+/+o+//+////:////+//+////+////+++////:-
// +++++++++//////////////://:::::-----.........................-::::///oyddddhhhhhdmdddhddhhysssyhhdmdyo++o/+/+oooo+++o+osdmmmmdhhyhdd+/+syo++oshddhyyhhyssooo+///+/++/+++/://:/+/++++o++oooooso++oo++/
// o+++++++++///////////////::::::-----.........................::::::++o+shmdyhhsyhdddmmddddhsosyhhmmh++/+o+/+/++++ooososhmddddhyyso++oosso++osyyhhddmdysooo+//+/o+++/+/o//o+/++++/+ooosssooooo+++++/++
// o+++++++++///////////////:::::------........................-::::::+ossyyhyo+++shddmmdyyhyo//osysdds//++++o+/++o+o++oosdhdddhhyyysoooysoosyyyhdddhmmss+o+o++//+/+++//+++++oo++/oossssssssoooooooo++++
// o++++++++++/////////////:/::::-----.........................:::::/oyysyysooo+oyhdddmdhhddh+++osyhdh//////++o+///++ooooyshdmmmmdddhdhssshhysydmmysshyoo++++++/+++////+o+ooso+++ssyyyyyyyyysssooooo+o++
// ooo+++++++++//////////////::::-----.........................:-:::ohdhhhhysssssyhhhyhhhdmmd+++oyddho////:/++++++/+/+++oshmmmmmdhyyyssyhdysshmmmdhyysoo+/+o+//++/+//++ososso++syhyyyhyyyyyyyysssysssyss
// ooo+++++++++////////////::::::------.......................---::+hddhhyysoosoooosssooosyyyssyhdhho+///////////+/+++++symmmdys+//+oyhhyssyhdmmmmmhyo+++++++/+++++oo++ohssoooyhhhhhhhyyyhyhhyyhyyhyyyyy
// ooo++++++/++/////////////::::::-----.......................:::/:/+sssyyysssyo++oosyhhhhyyssoo+oooo+///////////+++++oyhddhysssyyhdddhysoshmNNNNmmyoo+++++++/+/++++o+osdyssoyhhhhhhhhhhhhhhyhhhhhhhhhhh
// oooo++++++++/////////////::::::-----.......................:::::///++ooooo++/:/+syhhddys++/:/+++o+++////++////+++osysydhydmddddyshysoshmmmmmNNmyooo+oo+++++/++oooooshdyoyyhhhhhhhhhhdhhhhhdhhhhdhhhhd
// ooo+++++++++/////////////::::::----.......................-://::::://////:///://ooooo+////////++oo++++////++//oosyhyyyyshddmmhyhyysyhmNmdddmNdysooooosooooooooooso+shdysyhdhhhhhhhdddhdhdddddddhhhddd
// oooo+++++++++////////////::::::----.......................::/:::::///////://::::::::::://:/::/++oo+++////++++oohyhhhhhhsydmdhhhyyhhyymmmdddmmyssoooosysossosoo+ssossddysydhhddhhddhhddddddddddddhdddd
// oooo+++++++++/++//////////::::-----......................-:::::::///////::/:::::::::::::::::/:/++oo++++++/++ssyhhddddhyyohmddhhddhyhhmmmddmmdsssoosssosssossooossoyhmhyyhdhddddhhhdhhddddddddhddddmdd
// oooo+++++++++//+//////////::::----.......................-:::::///:/::::::/::::-::::/:-:::::///++ooooo+++++shhdddddhhyyhysdddhdmdhhddmdhhydmhssosssysssssssoosssssyhmysyddddddhdhdddddddddddddddmdddd
// ooooo+++++++++++//////////::::----.......................::::::://://:::://::-:::-::::::::::////++oosoo+o+oyhhdddddhhhhddyyhyhddhhhdmmmhyyddhssssssyyysssssssssysyyddyyhddddddddhhhhhddddddddmddddddm
// ooooo+o++++++++++/////////::::----.......................::::::/:///::::::::::::::::::::/:::::///++osssososssyhddddhhhhdddssoossyhdmmmmhyyhhhyssyyyyysyyyssyssssshhmhyhdddddddddddhdhhddmddmdddddhdmm
// ooooooo++++++++++/////////:::-----......................-:::::/::::/:/::://::::/::::::::::::::/:://+ooosssyysyyyyyyyhddmmysssssyyhhddmdhysyhhyyyyyyyysyyyyysssyysyydhydddddddhddddhddddddddddddhddmmm
// ooooooo+++++++++++////////:::-----......................:::::/:::://:-::/:://::/::::-:::::::::/:/::/++oosssyyysssssyhdddhsyysssyyhhddhhyssyyyyyyyyysyyssyyyyyyyyyhhdyhdddhddddhddddddmmddddddhdddmmmm
// ooooooo+o+++++++++++//////:::-----.....................-::::::/:///:::::::::/::/::::::::::/::/:///::////+oosyysssyssyyyysssyhyyhddmmdyysoossyssyyysssyyssysyyyyshyddhddhhhddhdddddddddmddhdddhhdhhdmm
// ooooooooo++++++++++///////:::-----.....................-::::////:::::::::::::::::::://::::/-:::::/:://::///+osyyssosossssssysyhdddddhysoosssyyssssyssyyyyyysssyshddddddhddddddddddmddddhdhhhddddmmmmm
// oooooooooo+o++++++++++////::::----.....................::://::::/::::::::::::::/:://::::::::::/::::::///////++ooooosoo+ososssshddhhysssooossssssssyssysyyyyyysysyhddddddddddddddddddddhddhhhddddmmmmd
// soooooooooo+++++++++++////::::----....................-:::::////:::/:::::::/::://///:/::::::::/:///://:/://+//+++++++oo+ooooooshdyyyssossoosssyssyysssssyyyyysssshdddddddddddddddddddhhhdhhhddmmmmdmd
// sssooooooooo++++++++++////::::----....................-:::/:://///:::::::::::::/://:/::://::::::://:::/://///++/+++/+++o+oosssyyysssyysosoososysssyysyyyyhysyssyyhdddddddddddddddddhddhddhddmmmmmdmmm
// ssssoooooooo++++++++++////:::::----...................:::::://::::::::::::-::://///:////::/:/:::://///:://://+o++++++oooosoosoossoososssooososssssyyyyyssyyyssyyyhmmdddhhhhhhhddhdddddddddmmmmmmddmmm
// sssoooooooooooo+++++++/////::::----...................:://///:/:::::::::::::::://///////////+/:/://://::////+++++++ooossoossososososssoososossssssyssyyyyyyyyyysyhdhhhhhhhhhhhdhhhhhdddddmmmmmmddmmNN
// ssssoooooooooooo+++++++////::::----..................-::::/:/:::::::::::::://:::://///:/:///////////:://+/++++++oooooooosssssoosssssssosooosooossssyyysyyysyyyysoyyooossssyyhhhddhddhhhhhddmmmmmmmmmm
// ssssssoooooooooooo++++++///:::------.................::::::://:::::::-:::::/::://////:///////////////////++o++oo+ooooosoossossosssossssoosoosoosssyysyyyysyyssysoyo+oooo//+osossosyhhhhhhddmmddmmmmdm
// sssssssosooooooooooo++++///::::-----................./::::/:/:::::::::-::/:::/://///////////+//++/++//+oo+oo++ooo+ooooosssosoossssysosssssooooossysyyyyysyyyyyssoo++ooo+//+s/:---::/+oosyyyhhhhdmmmmm
// yssssssssssoooooooo+++++///::::-----................://::::::/:/::::::-::/::::://///////////////+/++++++oo+++oooooo+oooosssossosysosssosssoooosssyyyyyyyyyyyysso++++++//:/o/:--::::::::::/++oossymmmm
// yysssssssssssooooooo++++////:::------..............-///:::/:::/:::/::::://:::::::///////////////++++++o++++o++oo+ooooooooosysosssssoosssssosoossyyyyyssyyyyysss++oooo+///oo/::::-::::::::::::////sdmm
// yyysssssssssssooooooo++++///:::-------.............:/:::/:/:::::::::://://::/::::/:////////+/////++++++oo+ooo++oooo+oooossssssssssoossoooooossssyyyyyyyyyyyysso++ooo/--:/:.::::..::::-..-::://////ohm
// yyyssssssssssssoooooo++++///::::------............-/:::/://///:::::::::://::/::::::////:///+/+++/++++++/++++++o+o++oooooooosssssoossssssssosssssyyyyyyyyyyyyso++ooo:./.-+-.---...--:::.--::::://////o
// yyyysyssssssssssoooooo+++///::::--------.........-/:::::////::/::::::::::/:://:/:::///////////+/+++++//++++++++oo+++ooosoooossssssossoosssssssssyyyyyyyyyyysoo+oooo`:+.+.--.--.-::.-.----::-:.///////
// yyyyyyyyyssssssssooooo+++///:::::----------......:///:::://///:::::::::::://:/:::://///////+////++++////+++++++++o++oooosssososossossososssssysyyysyyyyyyysso+oooo+--:-+-.-.-------::----:--:-://////
// yyyyyyyyyyssssssssoooo++++//:::::-------------.--////://::/:::::/::::/:::://:/::::/:/:///////+//+++///+//++/++++o++++ooooooosssossssosoossssssssssyyyyyyyyso++ooso++/o+/::::::::::::::://////////////
// yyyyyyyyyyyssssssssoooo+++///::::---------------:////////////:/:///::::://////::::::://///////+/++////+//+/++++++++ooosooooooososoosososssosyyyssyysyyyyysso+oso+//+oo/:::::::::::::/:::///////////++
// yyyyyyyyyyyyysssssssooo+++///:::::---------------+////:///:///:::::///::://///:::/:::///////////++/++++///++++/++o+oooooooooosoososoossssssssysssyyyyyyysoo+ooso+++ss/::::::::::::::://///////////+++
// hhyyyyyyyyyyyyyssssssooo++///:::::---------------/////////:////://:///::://///://::://////////++////+///+///++o++++ooooooooooooooooooooososososssyssssysooo+oso+++os+:::::///////////////////////++++
// hhhyyyyyyyyyyyyyyssssooo+++///::::---------------:////////////:////////:://///::://////////++/+++//////+++++++++++++++oo+++o+ooososooosssoossssssssssssooo+osso+oos+:::////////////////////////++++++
// hhhhhhyyyyyyyyyyyyssssoo+++////:::::--------------:///////////:///://///:///////:///://///++/++++//++/++++/++++++++++++++o+oooooooosoosssssoosssssssssso++ossooooyo/:///////////////////////++++++++o