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:
x=(16,2,8,4,1,32)
a=int(raw_input())
s=0
for i in x:
	s+=a%2*i
	a/=2
print s