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Main.java
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Main.java
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package dev.idion.baekjoon.digitaltv;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class Main {
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int size = Integer.parseInt(br.readLine());
String[] kbs = {"KBS1", "KBS2"};
StringBuilder sb = new StringBuilder();
int k1 = -1;
int k2 = -1;
for (int i = 0; i < size; i++) {
String s = br.readLine();
if (s.equals(kbs[0])) {
k1 = i;
} else if (s.equals(kbs[1])) {
k2 = i;
}
if (k1 != -1 && k2 != -1) {
break;
}
}
int inOrder = k1 > k2 ? 1 : 0; // k1์ด ๋ ๋ค์ ์์ผ๋ฉด k2๊ฐ ๋ค๋ก ์ด๋ํ๋ฏ๋ก ํ ๋ฒ ๋ ์์ง์.
for (int i = 0; i < k1; i++) {
sb.append(1);
}
for (int i = 0; i < k1; i++) {
sb.append(4);
}
for (int i = 0; i < k2 + inOrder; i++) {
sb.append(1);
}
for (int i = 0; i < k2 + inOrder - 1; i++) {
sb.append(4);
}
System.out.print(sb.toString());
br.close();
}
}