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

namespace dz1
{
    class Program
    {
        static void Main(string[] args)
        {
            int[,] array =
            {
                { 2, 1, 2, 3, 4, 5, 6, 7, 8, 4, },
                { 1, 1, 2, 3, 4, 5, 6, 7, 8, 1, },
                { 5, 1, 2, 3, 4, 5, 6, 7, 8, 3, },
                { 6, 1, 2, 3, 4, 5, 6, 7, 8, 1, },
                { 3, 1, 2, 3, 4, 5, 6, 7, 8, 2, },
                { 3, 1, 2, 3, 4, 5, 6, 7, 8, 5, },
                { 4, 1, 2, 3, 4, 5, 6, 7, 8, 6, },
                { 5, 1, 2, 3, 4, 5, 6, 7, 8, 9, },
                { 6, 1, 2, 3, 4, 5, 6, 7, 8, 5, },
                { 1, 1, 2, 3, 4, 5, 6, 7, 8, 4, },
            };

            int maxValue = int.MinValue;

            for (int i = 0; i < array.GetLength(0); i++)
            {
                for (int j = 0; j < array.GetLength(1); j++)
                {
                    if (maxValue < array[i, j]) maxValue = array[i, j];

                    Console.Write($"{array[i, j]} ");
                }
                Console.WriteLine();
            }

            Console.WriteLine("\n\n\n");

            for (int i = 0; i < array.GetLength(0); i++)
            {
                for (int j = 0; j < array.GetLength(1); j++)
                {
                    if (array[i, j] == maxValue) array[i, j] = 0;

                    Console.Write($"{array[i, j]} ");
                }
                Console.WriteLine();
            }

            Console.WriteLine($"\n{maxValue} Наибольший элемент");
        }
    }
}