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:
n=input()
print 2**n if(n<=12) else 8092 if(n==13) else 8092*2**(n-13)