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:
x = int(input())
b = list(format(x, '0=6b'))
b[1], b[-1] = b[-1], b[1]
b[2], b[3] = b[3], b[2]
print(int(''.join(b), 2))