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:
def IntToByte(x):
    n = "" if x>0 else "0"
    while x > 0:
        y = str(x % 2)
        n = y + n
        x = int(x / 2)
    print (n[-1])


i = IntToByte(int(input()))