Add new file

Author: arshadumrethi

sum.py

@@ -0,0 +1,9 @@
+grades = [100, 100, 90, 40, 80, 100, 85, 70, 90, 65, 90, 85, 50.5]
+
+def grades_sum(grades):
+    total = 0
+    for i in grades:
+        total += i
+    print total
+
+grades_sum(grades)