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 = input()

if a<13:
    print 2**a
else:
    print (2**13 - 100)*2**(a-13)