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:
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class A1 {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(br.readLine(), " ");
        int N = Integer.parseInt(st.nextToken());

        String[] pres = new String[]{"Washington", "Adams", "Jefferson", "Madison", "Monroe", "Adams",
                "Jackson", "Van Buren", "Harrison", "Tyler", "Polk", "Taylor", "Fillmore", "Pierce", "Buchanan", "Lincoln",
                "Johnson", "Grant", "Hayes", "Garfield", "Arthur", "Cleveland", "Harrison", "Cleveland", "McKinley",
                "Roosevelt", "Taft", "Wilson", "Harding", "Coolidge", "Hoover", "Roosevelt", "Truman", "Eisenhower",
                "Kennedy", "Johnson", "Nixon", "Ford", "Carter", "Reagan", "Bush", "Clinton", "Bush", "Obama"};
        System.out.println(pres[N - 1]);
    }
}