diff --git a/index.js b/index.js
index 695b9e1..bc5ef82 100644
--- a/index.js
+++ b/index.js
@@ -1 +1,39 @@
 const app = "I don't do much."
+
+const kittens = ["Milo", "Otis", "Garfield"];
+
+function destructivelyAppendKitten(name) {
+  return kittens.push(name);
+}
+
+function destructivelyPrependKitten(name) {
+  return kittens.unshift(name);
+}
+
+function destructivelyAppendKitten(name) {
+  return kittens.push(name);
+}
+
+function destructivelyRemoveLastKitten(name) {
+  return kittens.pop(name);
+}
+
+function destructivelyRemoveFirstKitten(name) {
+  return kittens.shift(name);
+}
+
+function appendKitten(name) {
+  return [...kittens, name];
+}
+
+function prependKitten(name) {
+  return [name, ...kittens];
+}
+
+function removeLastKitten() {
+   return kittens.slice(0, kittens.length-1);
+}
+
+function removeFirstKitten() {
+   return kittens.slice(1);
+}
\ No newline at end of file