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 PYTHON3):

Solution:

i = int(input())
if i <= 12:
   print(pow(2 , i))
else:
   a = pow(2 , (i - 13)) * 100
   print(pow(2 , i) - a)