import java.util.*;
import java.io.*;
import java.math.*;

class Solution {

    public static void main(String args[]) {
        Scanner in = new Scanner(System.in);
        int r = in.nextInt();

        // Write an answer using System.out.println()
        // To debug: System.err.println("Debug messages...");

        System.out.println("duration");
    }
}