QuadronacciRectangle

using System;

class Program
{
    static void Main()
    {
        int number1 = int.Parse(Console.ReadLine());
        int number2 = int.Parse(Console.ReadLine());
        int number3 = int.Parse(Console.ReadLine());
        int number4 = int.Parse(Console.ReadLine());
        int nextNumber = 0;
        int rows = int.Parse(Console.ReadLine());
        int columns = int.Parse(Console.ReadLine());
        string space = "";

        if (columns == 4)
        {
            Console.WriteLine("{0} {1} {2} {3}", number1, number2, number3, number4);
        }
        else
        {
            Console.Write("{0} {1} {2} {3} ", number1, number2, number3, number4);
        }

        if (rows >= 1 && rows <= 20 && columns >= 4 && columns <= 20)
        {
            for (int i = 4; i < rows * columns; i++)
            {
                if (i > 4 && i % columns == 0)
                {
                    space = "\n";
                }
                else
                {
                    space = " ";
                }

                nextNumber = number1 + number2 + number3 + number4;
                number1 = number2;
                number2 = number3;
                number3 = number4;
                number4 = nextNumber;
                Console.Write(nextNumber + space);
                space = "";
            }
        }
    }
}