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)
else:
    start = 8092
    for _ in range(a - 13):
        start *= 2
    print(start)