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())
b = list("{0:06b}".format(n))
b[1], b[5] = b[5], b[1]
b[2], b[3] = b[3], b[2]
print(int(''.join(b), 2))