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 sys
input=sys.stdin.readline
n=int(input())
if n<=12:
    print(2**n)
else:
    print(8092*2**(n-13))