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 JAVA):

Solution:
function main() {

    var a = Number(readline());

    if(a<13){
        print(Math.pow(2,a));
    }else {
        print(8092*Math.pow(2,(a-13)));
    }

}

main();