Аналог C++ system("pause") - C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
 
namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            int m = 20, n = 15;
            double[,] A = new double [m,n];
            double summ, num1=0, num2=0, bol=0, men=0;
            for (int i = 0; i < m; i++)
            {
                
                for (int j = 0; j < n; j++)
                {
                    
                    A[i,j] = (i+j) / Math.Log(1+j);
                    Console.Write(A[i,j] + " ");
                   }
                Console.WriteLine();
              }

            for (int i = 0; i < m; i++)
            {
                summ = 0;
                for (int j = 0; j < n; j++)
                {
                    summ = summ + A[i, j];
                }
                if (summ > bol) {
                    bol = summ;
                    num1 = i;
                }
                if (summ < men)
                {
                    men = summ;
                    num2 = i;
                }
            }
            System.Console.Write(num1+" "+bol+"  "+num2+" "+men);
         }
    }
    Console.ReadKey();  <----------выдает ошибку
}