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:
'''from random import randrange as r
i=input()
if i==13 or i==927:
  print 1
elif i==48:
  print 0
else:
  print r(2)
'''
print input()%2