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:
b = list(bin(int(input())))[2:]
b = ['0']*(6-len(b))+b
b[1],b[5]=b[5],b[1]
b[2],b[3]=b[3],b[2]
print(int("0b"+"".join(b),2))