diff --git a/ThreeAndThree.java b/ThreeAndThree.java
index a5f9d46..3314184 100644
--- a/ThreeAndThree.java
+++ b/ThreeAndThree.java
@@ -4,6 +4,17 @@ public class ThreeAndThree {
 
 class Solution {
     public String intToRoman(int num) {
-        
+        String[] a1 = new String[] { "I", "IV", "V", "IX", "X", "XL", "L", "XC", "C", "CD", "D", "CM", "M" };
+        int[] a2 = new int[]{1, 4, 5, 9, 10, 40, 50, 90, 100, 400, 500, 900, 1000};
+
+        StringBuilder builder = new StringBuilder();
+        for (int i = a1.length-1; i >=0; i--) {
+            while (num >= a2[i]) {
+                builder.append(a1[i]);
+                num -= a2[i];
+            }
+        }
+
+        return builder.toString();
     }
 }
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