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:
a = int(input())
if a < 13 :
    print(2**a)
if a == 13 :
    print(8092)
if a > 13 :
    print(8092*(2**(a-13)))