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 <= 12:
    print(2**a)
else:
    result = 8092
    for index in range(a - 13):
        result *= 2
    print(result)