diff --git a/index.js b/index.js
index 695b9e1..807e52e 100644
--- a/index.js
+++ b/index.js
@@ -1 +1,33 @@
 const app = "I don't do much."
+// 1 begins
+var kittens = ['Milo', 'Otis', 'Garfield']
+function destructivelyAppendKitten(name){
+kittens.push(name)
+}
+// 2 begins
+function destructivelyPrependKitten(name){
+  kittens.unshift(name)
+}
+function destructivelyRemoveLastKitten(){
+  kittens.pop()
+}
+// 3 begins
+function destructivelyRemoveFirstKitten(){
+  kittens.shift()
+}
+// 4 begins
+function appendKitten(name){
+return  [...kittens,name]
+}
+// 5 begins
+function prependKitten(name){
+  return [name,...kittens]
+}
+// 6 begins
+function removeLastKitten(){
+  return kittens.slice(0,-1)
+}
+// 7 begins
+function removeFirstKitten(){
+return  kittens.slice(1)
+}