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:
i = int(input())
if i <= 12 :
    l = 2 ** i
else:
    l = 2 ** i - 2 ** (i - 13) * 100
print(l)