diff --git a/day-02/solution.py b/day-02/solution.py
index 29bdc9f..d732c6a 100644
--- a/day-02/solution.py
+++ b/day-02/solution.py
@@ -2,6 +2,7 @@ from __future__ import print_function
 import fileinput
 from operator import mul
 from functools import reduce
+import itertools
 
 totalArea = 0
 totalRibbon = 0
@@ -9,10 +10,9 @@ for line in fileinput.input():
     parts = [int(i) for i in line.split('x')]
     parts.sort()
 
-    sides = [parts[0] * parts[1], parts[0] * parts[2], parts[1] * parts[2]]
-    totalArea += 2 * sum(sides)
+    sides = [x * y for x, y in itertools.combinations(parts, 2)]
+    totalArea += 2 * sum(sides) + min(sides)
 
-    totalArea += min(sides)
     totalRibbon += 2 * (parts[0] + parts[1])
     totalRibbon += reduce(mul, parts, 1)