Задания на яп c#

using System;

namespace ConsoleApp1
{
class Program
{
static void Main(string[] args)
{
int SizeMatrix = 3;
int[,] Matrix = new int[SizeMatrix, SizeMatrix];
Random rand = new Random();
for (int i = 0; i < Matrix.GetLength(0); i++)
{
for (int j = 0; j < Matrix.GetLength(1); j++)
{
Matrix[i, j] = rand.Next(int.MinValue, int.MaxValue);
Console.Write(Matrix[i, j] + (j == Matrix.GetLength(1) - 1 ? "" : ", "));
}
Console.WriteLine();
}
int MaxValue = 0;
for (int i = 0; i < Matrix.GetLength(0); i++)
{
for (int j = 0; j < Matrix.GetLength(1); j++)
{
if (Matrix[i, j] > MaxValue) MaxValue = Matrix[i, j];
}
Console.Write(MaxValue + (i == Matrix.GetLength(0)-1 ? "" : ", "));
MaxValue = 0;
}
}
}
}