diff --git a/index.js b/index.js
index e69de29bb2..b5da352c19 100644
--- a/index.js
+++ b/index.js
@@ -0,0 +1,38 @@
+
+function add(a, b){
+return a + b;
+}
+
+function subtract(a,b){
+ return a-b; 
+}
+function multiply(a, b){
+  return a * b;
+}
+function divide(a,b){
+  return a / b;
+}
+
+var n = 0;
+function increment(n){
+  n++;
+  return n;
+}
+var n = 0;
+function decrement(n) {
+  n--;
+  return n;
+}
+
+function makeInt(n){
+  return parseInt;
+}
+
+function makeInt(n){
+  return parseInt(n, 10);
+}
+
+function preserveDecimal(n){
+  return parseFloat(n);
+}
+