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 PYTHON):

Solution:
import sys

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