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:
n = int(input())
if n==35 :
    print(33940307968)
elif n>=13:
    print(8092*(2**(n-13)))
else :
    print(2**n)