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:
print(int(input()) % 2)

'''
* So I drown it out 
* Like I always do
* Dancing through our house
* With the ghost of you
'''