diff --git a/index.html b/index.html
index ef273b7..e79742a 100755
--- a/index.html
+++ b/index.html
@@ -20,8 +20,8 @@ <h1>Loops Exercises</h1>
 
     <section id="menu">
       <ul>
-        <li><button type="button" class="btn btn-primary" onclick="yourFunctionName()">Example 3.1</button></li>
-        <li><button type="button" class="btn btn-primary" onclick="yourFunctionName()">Example 3.2</button></li>
+        <li><button type="button" class="btn btn-primary" onclick="combineArrays([1,2,3], ['a','b','c'])">Example 3.1</button></li>
+        <li><button type="button" class="btn btn-primary" onclick="largestPossibleNumber([50, 2, 1, 9])">Example 3.2</button></li>
       </ul>
     </section>
 
diff --git a/js/script.js b/js/script.js
index c36bf4a..c7d8bf4 100755
--- a/js/script.js
+++ b/js/script.js
@@ -2,12 +2,24 @@
 
 var display = document.getElementById("display");
 
-function yourFunctionName (){
-  display.innerHTML = "hello";
+function combineArrays(arr1, arr2) {
+    
+    var arrays = arr1.map(function(el, i) {
+        return [el, arr2[i]];
+    })
+    display.innerHTML = [].concat.apply(arrays);
 }
 
-function example(){
-  var v = 3 +4;
-  
-  display.innerHTML = v;
+function largestPossibleNumber(numArr) {
+    var splitArr = numArr.map(function(num) {
+        num = num+"";
+        return num.split("");
+    })
+    
+    splitArr.sort(function(a, b) {
+        return b[0] - a[0];
+    })
+    var flat = [].concat.apply([], splitArr);
+    display.innerHTML = flat.join("");
+
 }
\ No newline at end of file