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:
a = int(raw_input())

if a < 13:
    print pow(2L, a)
else:
    print pow(2L, a - 11) * 2023