diff --git a/app.js b/app.js
index ad9a93a7..caa45b9a 100644
--- a/app.js
+++ b/app.js
@@ -1 +1,23 @@
 'use strict';
+
+const memo = new Map();
+memo.set(0,0);
+memo.set(1,1);
+function fib(n){
+	if (memo.has(n)){
+		return memo.get(n);
+	}
+	else{
+	const value = fib(n-1)+fib(n-2);
+	memo.set(n, value);
+		return value;
+	}
+};
+
+const length = 100;
+for (let i=0; i<=length; i++){
+	console.log(fib(i));
+};
+
+
+