nacket

import java.util.Collection;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;

public class Nacket {

    public static void main(String[] args) {
        //Console console = System.console();
int x=15;
       // int x = Integer.valueOf(console.readLine("Enrer number : "));
        // int[] n=new int[]

{
    List<Integer> list = new LinkedList<Integer>();
    for(int i=0;i*6<=x;i++){
        for(int j=0;j*9<=x;j++){
            for(int k=0;k*20<=x;k++){
                System.out.print(i*6+j*9+k*20 + " ");
                if(i*6+j*9+k*20 <= x){
                    list.add(i*6+j*9+k*20);
                   System.out.println(i*6+j*9+k*20);
                }
            }
        }
        System.out.println("");
    }
    Collections.sort(list);
    for(int i : list) System.out.println(i);