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 PYTHON):

Solution:
import math

num = int(raw_input())

if num < 13:
    print int(math.pow(2,num))

else:
    print (int(math.pow(2,num)-(math.pow(2,(num-13))*100)))