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