using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Matrice
{
    class Program
    {
        static void Main(string[] args)
        {
            int[,] a = { { 1, 2, 3 }, { 4, 5, 6 }, {7,8,9} };
            Scrie(a);
            int[][] b;
            int n;
            Console.WriteLine("Numarul de linii:");
            n = Convert.ToInt32(Console.ReadLine());
            b = new Int32[n][];
            Citeste(b);
            Scrie(b);
        }

        static void Scrie(int[,] a)
        {
            for (int i = 0; i*i < a.Length; i++)
            {
                for (int j = 0; j*j < a.Length; j++)
                    Console.Write(a[i,j] + " ");
                Console.WriteLine();
            }
            Console.WriteLine();
        }

        static void Scrie(int[] v)
        {
            //for (int i = 0; i < v.Length; i++)
                //Console.Write(v[i] + " ");
            foreach (int x in v)
                Console.Write(x + " ");
            Console.WriteLine();
        }

        static void Scrie(int[][] b)
        {
            for (int i = 0; i < b.Length; i++)
                Scrie(b[i]);
        }

        static void Citeste(int[][] b)
        {
            for (int i = 0; i < b.Length; i++)
            {
                Console.WriteLine("Numarul de elemente de pe linia {0}:", i);
                int n = Convert.ToInt32(Console.ReadLine());
                b[i] = new int[n];
                Console.WriteLine("Elementele de pe linia {0}:", i);
                for(int j=0 ; j<b[i].Length ; j++)
                    b[i][j] = Convert.ToInt32(Console.ReadLine());
            }   
        }
    }
}