

Input

The input contains a single integer a (10 ≤ a ≤ 999).

Output

Output 0 or 1.

Examples

Input

13


Output

1


Input

927


Output

1


Input

48


Output

0
# Amirhossein Alimirzaei
# University Of Bojnourd
# Telegram : @HajLorenzo
# Instagram : amirhossein_alimirzaei
# CodeForcesian ;)

print(0 if int(input())%2==0 else 1)