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:
# -*-coding:utf-8 -*-
a=int(raw_input())
if a>=13:
    print 8092*(pow(2,a-13))
else:
    print pow(2,a)