package timus;
import java.util.Scanner;
/**
* Created by sherxon on 12/5/16.
*/
public class Farm1349 {
public static void main(String[] args) {
Scanner in=new Scanner(System.in);
int n=in.nextInt();
if(n==1) System.out.println(1 + " " + 2 + " " + 3);
else if(n==2) System.out.println(3 + " " + 4 + " " + 5);
else System.out.println(-1);
}
}