

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
import random as rand

def quirkyQuantifier(a):
    if a%2 == 0:
        return 0
    else:
        return 1

a = int(input())
if a<10 or a>999:
    exit()

print(quirkyQuantifier(a))