Add 'E.py'

E.py

@@ -0,0 +1,14 @@
+while True:
+    a=int(input())
+    if a<0 or a>100:
+        print('Score is error!')
+    elif a<60:
+        print('E')
+    elif a<70:
+        print('D')
+    elif a<80:
+        print('C')
+    elif a<90:
+        print('B')
+    else:
+        print('A')