using System;

public class Program

{

    public static void Main()

    {

        int Length=50;

        int Width=50;

        int LengthMax=500;

        int WidthMax=500;

        int LengthAdd=10;

        int WidthAdd=25;

        int LengthAddPrice=150;

        int WidthAddPrice=200;

        int result=0;

        for(;Length<LengthMax;Length+=LengthAdd){

            result+=LengthAddPrice;

            for(;Width<WidthMax;Width+=WidthAdd){

                result+=WidthAddPrice;

                Console.WriteLine(Length+"×"+Width+"="+result);

            }

            Console.WriteLine(Length+"×"+Width+"="+result);

        }

    }

}