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:
a = [1,2,4,8,16,32,64,128,256,512,1024,2048,4096,8092,16184,32368,64736,129472,258944,517888,1035776,2071552,4143104,8286208,16572416,33144832,66289664,132579328,265158656,530317312,1060634624,2121269248,4242538496,8485076992,16970153984,33940307968];
n = input(); print a[n];