diff --git a/Exercises/1-pipe.js b/Exercises/1-pipe.js
index d09882a..f849ff7 100644
--- a/Exercises/1-pipe.js
+++ b/Exercises/1-pipe.js
@@ -1,5 +1,9 @@
 'use strict';
 
-const pipe = (...fns) => x => null;
+const pipe = (...fns) => {
+  const isValid = fns.every(fn => typeof fn === 'function');
+  if (!isValid) throw new Error('invalid args');
+  return x => fns.reduce((res, fn) => fn(res), x);
+};
 
 module.exports = { pipe };
diff --git a/Exercises/2-compose.js b/Exercises/2-compose.js
index 368e521..24a317c 100644
--- a/Exercises/2-compose.js
+++ b/Exercises/2-compose.js
@@ -1,5 +1,25 @@
 'use strict';
 
-const compose = (...fns) => x => null;
+const compose = (...fns) => {
+  const events = new Map();
+  const outputFn = x =>
+    fns.reduceRight((arg, fn, i, arr) => {
+      try {
+        return fn(arg);
+      } catch (e) {
+        arr.length = 0;
+        return outputFn.emit('error', e);
+      }
+    }, x);
+  outputFn.emit = (event, ...args) => {
+    const handlers = events.get(event);
+    if (handlers) handlers.forEach(fn => fn(...args));
+  };
+  outputFn.on = (event, handler) => {
+    const existsEvent = events.get(event);
+    existsEvent ? existsEvent.push(handler) : events.set(event, [handler]);
+  };
+  return outputFn;
+};
 
 module.exports = { compose };