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:
n = int(raw_input().strip())
if n >= 13:
    print 8092 * (2 ** (n-13))
else:
    print 2**n