using System;

public class Program

{

    public static void Main()

    {

        int[,] array = { { 1, 9, 0 }, { 9, 1, 5 }, { 1, 8, 7 }, { 2, 3, 0 } };

int[] temp = new int[array.GetLength(1) + 1];

for (int f = 0; f < array.GetLength(0); f++)

{                

    for (int c = 0; c < array.GetLength(1); c++)

        temp[c] = array[f, c];

    temp[temp.GetLength(0) - 1] = f;

​

    for (int ff = f + 1; ff < array.GetLength(0); ff++)                

    {

        if (temp[0] < array[ff, 0] || (temp[0] == array[ff, 0] && temp[1] < array[ff, 1]))

        {

            for (int c = 0; c < array.GetLength(1); c++)

                temp[c] = array[ff, c];

            temp[temp.GetLength(0) - 1] = ff;

        }                        

    }

​

    if (temp[0] > array[f, 0] || (temp[0] == array[f, 0] && temp[1] > array[f, 1]))

    {

        for (int c = 0; c < array.GetLength(1); c++)

        {

            array[temp[temp.GetLength(0) - 1], c] = array[f, c];

            array[f, c] = temp[c];

        }

    }                

}    

    }

}

​

​