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:
a=int(raw_input())
if a<13:
    print 1<<a
else:
    print ((1<<13)-100)<<(a-13)