diff --git a/index.js b/index.js
index e69de29bb..6b04222c0 100644
--- a/index.js
+++ b/index.js
@@ -0,0 +1,25 @@
+function shout(string){
+  return string.toUpperCase();
+}
+
+function whisper(string){
+  return string.toLowerCase();
+}
+
+function logShout(string){
+  console.log(string.toUpperCase());
+}
+
+function logWhisper(string){
+  console.log(string.toLowerCase());
+}
+
+function sayHiToGrandma(string){
+  if(string.toUpperCase() === string){
+    return 'YES INDEED!';
+  } else if(string.toLowerCase() === string){
+    return `I can't hear you!`;
+  } else if(string === 'I love you, Grandma.'){
+    return 'I love you, too.';
+  }
+}