diff --git a/05_sumAll/sumAll.js b/05_sumAll/sumAll.js
index 00880c7..210720e 100644
--- a/05_sumAll/sumAll.js
+++ b/05_sumAll/sumAll.js
@@ -1,5 +1,11 @@
-const sumAll = function() {
+const sumAll = function(num1, num2) {
+    let sum = 0;
+            
+    for (let i = num1; i <= num2; i++) {
+        sum += parseInt(i);
+    }
 
+    return sum;
 };
 
 // Do not edit below this line