1 files changed, 16 insertions, 9 deletions
diff --git a/challenge-250/eric-cheung/python/ch-1.py b/challenge-250/eric-cheung/python/ch-1.py
index 3f0e3c37c1..66f88a07e9 100755
--- a/challenge-250/eric-cheung/python/ch-1.py
+++ b/challenge-250/eric-cheung/python/ch-1.py
@@ -1,10 +1,17 @@
 
-## arrInt = [0, 1, 2]  ## Example 1
-## arrInt = [4, 3, 2, 1]  ## Example 2
-arrInt = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]  ## Example 3
-
-arrOutput = [nIndx for nIndx in range(len(arrInt)) if nIndx % 10 == arrInt[nIndx]]
-if len(arrOutput) > 0:
-    print (arrOutput[0])
-else:
-    print (-1)
+## arrInt = [6, 12, 25, 1]  ## Example 1
+## arrInt = [10, 7, 31, 5, 2, 2]  ## Example 2
+arrInt = [1, 2, 10]  ## Example 3
+
+nSum = 0
+while len(arrInt) > 0:
+    if len(arrInt) == 1:
+        nSum = nSum + arrInt[0]
+        del arrInt[0]
+    else:
+        nSum = nSum + int(str(arrInt[0]) + str(arrInt[-1]))
+        del arrInt[-1]
+        del arrInt[0]
+
+print (nSum)
+