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 = int ( input() )


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