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:
def main():
    temp = input()
    if temp >= 13:
        print 2 ** temp - 100 * (2 ** (temp - 13))
    else:
        print 2 ** temp


if __name__ == '__main__':
    main()