using System;
public class Program
{
public static void Main()
//int num=int.Parse(Console.ReadLine());
//int num1=int.Parse(Console.ReadLine());
//char s=char.Parse(Console.ReadLine());;
//if (num%7==0 || t==7 || d==7){
//Console.WriteLine("boom");
//}
//if(num%7==0 && t==7 && d==7){
//Console.WriteLine("boom boom");
Random a=new Random();
int b=a.Next(1,6);
Console.WriteLine(b*10);
}