using System;

​

namespace MyProject_31

{

    public class Program

    {

        public static void Main(string[] args)

        {

           while (true)

            {

                Console.Clear();

​

                Random rnd = new Random();

​

                int[][] myArray = new int[rnd.Next(20)][];

​

                for (int i = 0; i < myArray.Length; i++)

                {

                    myArray[i] = new int[rnd.Next(20)];

                }

​

                for (int i = 0; i < myArray.Length; i++)

                {

                    for (int j = 0; j < myArray[i].Length; j++)

                    {

                        myArray[i][j] = rnd.Next(1000);

                    }

                }

​

                for (int i = 0; i < myArray.Length; i++)

                {

                    for (int j = 0; j < myArray[i].Length; j++)

                    {

                        Console.Write(myArray[i][j] + "\t");

                    }

                    Console.WriteLine("\n");

                }

                Console.ReadLine();

            }

        }

    }

}