using System;

public class Program

{

    public static void Main()

    { int num,memberOFfamily,sum=0,pay1=1;

     string lastname;

        Console.WriteLine("enter the number of places on the truip");

     num=int.Parse(Console.ReadLine());

     Console.WriteLine("enter the memebers pf family");

     memberOFfamily=int.Parse(Console.ReadLine());

     Console.WriteLine("enteryour last name");

     lastname=Console.ReadLine();

    while(memberOFfamily<num)

     {

        pay1=100*memberOFfamily;

         Console.WriteLine(lastname+pay1+"THE FAMILY HAS TO PAY");

     }

     Console.WriteLine( "not enough places");

     sum=pay1+sum;

     Console.WriteLine(sum+"all trip payments");

    }

}