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using System;

namespace ConsoleApp3
{
    internal class Program
    {
        static void Main(string[] args)
        {
            int matrixRows = 10;
            int matrixColumns = 10;
            int[,] matrix = new int[matrixRows, matrixColumns];

            Random random = new Random();
            int randomMaxRange = 100;
            int randomMinRange = 10;

            int markerNumber = 0;
            int tempiralValue = int.MinValue;

            for (int i = 0; i < matrix.GetLength(0); i++)
            {
                for (int j = 0; j < matrix.GetLength(1); j++)
                {
                    matrix[i, j] = random.Next(randomMinRange, randomMaxRange);
                    Console.Write(matrix[i, j] + " ");
                }

                Console.WriteLine();
            }

            for (int i = 0; i < matrix.GetLength(0); i++)
            {
                for (int j = 0; j < matrix.GetLength(1); j++)
                {
                    if (matrix[i, j] > tempiralValue)
                    {
                        tempiralValue = matrix[i, j];
                    }
                }
            }

            Console.WriteLine();

            for (int i = 0; i < matrix.GetLength(0); i++)
            {
                for (int j = 0; j < matrix.GetLength(1); j++)
                {
                    if (matrix[i, j] == tempiralValue)
                    {
                        matrix[i, j] = markerNumber;
                    }

                    Console.Write(matrix[i, j] + " ");
                }

                Console.WriteLine();
            }

            Console.WriteLine(tempiralValue);
        }
    }
}