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
data = input()
if 13>data:
  print 2**data
else:
  print 17*17*7*(2**(data-11))