Problem: 

Input

The input contains a single integer a (0 ≤ a ≤ 35).

Output

Output a single integer.

Examples

Input

3


Output

8


Input

10


Output

1024

Solution (in PYTHON3):

Solution:
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))