using System;

public class Program

{

    public static void Main()

    {

        int A = 210;

        int B = 297;

​

        Console.WriteLine("Side a:");

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

​

        if ((a > A) || (a <= 0)) 

            Console.WriteLine("'a' should be greater than '0' and less than " + A);

​

​

        Console.WriteLine("Side b:");

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

​

        if ((b > B) || (b <= 0))

            Console.WriteLine("'b' should be greater than '0' and less than " + B);

​

        int horizontal = 0;

        int vertical = 0;

​

        //Horizontal case 

        if (a <= A && b <= B)

        {

            int columns = B / b;

            int rows = A / a;

​

            horizontal = rows * columns;

        }

​

        // Vertical case

        if (a <= B && b <= A)

        {

            int columns = A / b;

            int rows = B / a;

​

            vertical = rows * columns;

        }

​

        int result = Math.Max(horizontal, vertical);

        Console.WriteLine("Max number of cutable rectangles is: " +  result);

​

    }

}