using System;

public class Program

{

    public static void Main()

    {

        int[] count = new int[20];

        int[,] array = new int[2, 20]{

            {3,2,10,10,5,9,10,8,8,2,0,3,2,1,2,1,2,1,0,0},{0,1,2,1,2,4,2,3,1,1,0,3,5,10,8,10,9,7,4,6}

        };

        int k, c,sum50=0, sum=0, counter=0, max=0, count2=0;

;

        for (c = 0; c < 1; c++)

        {

            for (k = 0; k < 20; k++)

            {

             sum+=array[c,k];  

             }

         }

        Console.WriteLine("sum " + sum);

         for (c = 0; c < 1; c++)

        {

            for (k = 0; k < 20; k++)

            {

                if (c==0){

             sum50 += array[c,k]-array[c+1,k];

                    if (sum50 == 50){

                        counter++;

                    }

                }

             }

             Console.WriteLine("50 people at " + counter + " stations");

            for (c = 0; c < 1; c++)

            {

            for (k = 0; k < 20; k++)

            {

                if (array[0,k]>max){

                    max = array[c,k];

                }

             }

            for (c = 0; c < 1; c++)

            {

            for (k = 0; k < 20; k++)

            {

                if (array[0,k] == max){

                    count[count2]= k;

                    count2++;

                }

            }}

             for (k = 0; k < 20; k++)

            {               

​

                //Console.Write(count[k]+1 + ", ");

                }

                                // Console.WriteLine(max);

            for (k = 0; k < 20; k++)

            {               

                if (count[k]>1){

                Console.WriteLine(count[k]+1 + " max is  " + max);

​

                }

                }

         }

         }

}

}

​