diff --git a/index.js b/index.js
index e69de29bb..7e70f2c41 100644
--- a/index.js
+++ b/index.js
@@ -0,0 +1,21 @@
+function shout(string) {
+  return string.toUpperCase()
+}
+
+function whisper(string) {
+  return string.toLowerCase()
+}
+
+function logShout(string) {
+  console.log('HELLO')
+}
+
+function logWhisper(string) {
+  console.log('hello')
+}
+
+function sayHiToGrandma(string) {
+  if (string === string.toLowerCase()) return "I can't hear you!";
+  else if (string === string.toUpperCase()) return "YES INDEED!";
+  else if (string === "I love you, Grandma.") return "I love you, too."
+}