diff --git a/HexToDec.py b/HexToDec.py
index 2b289400..274f1ccb 100644
--- a/HexToDec.py
+++ b/HexToDec.py
@@ -1,18 +1,13 @@
-# Python Hexadecimal to Decimal Conversion
+def getDecDigit(digit):
+    digits = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F']
+    return digits.index(digit)
 
-def __getDecDigit(digit):
-	digits = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 
-		'A', 'B', 'C', 'D', 'E', 'F']
-	for x in range(len(digits)):
-		if digit == digits[x]:
-			return x
-			
 def hexToDec(hexNum):
-	decNum = 0
-	power = 0
-	for digit in range(len(hexNum), 0, -1):
-		decNum = decNum + 16 ** power * __getDecDigit(hexNum[digit-1])
-		power += 1
-	print(str(decNum))
-	
-hexToDec("A5")
\ No newline at end of file
+    decNum = 0
+    power = 0
+    for digit in hexNum:
+        decNum = decNum + 16 ** power * getDecDigit(digit)
+        power += 1
+    return decNum
+
+print(hexToDec("A5")) # should print 165