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:
a=int(input())
x=0
if(a<0):
	exit(0)
if(a<13):
	x=2**a
	print(x)
else:
	x=8092*(2**(a-13))
	print(x)