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.util.*;
public class cf290a {
  public static void main(String[] args) {
    Scanner in = new Scanner(System.in);
    int n = in.nextInt();
    String[] presidents = {
        "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(presidents[n-1]);
  }
}