Revise paste Console Sort Game

using System;
using System.IO;
using System.Deployment;
using System.Text;
using System.Collections.Generic;

class Sorteo
{
    static void Main(string[] args)
    {
        int[] C = new int[10];
        Console.Write("Ingrese Indice de sorteo: ");
        int N = int.Parse(Console.ReadLine());
        string[,] entero = new string[N,5];
        for(int j=1; j<=N; j++)
        {
            var bolas = "10210231023456789102345678910234567893456789456789";
            var sorteo = new char[5];
            var bola = new Random();
            for (int i = 0; i < sorteo.Length; i++)
            {
                entero[j-1,i] = Convert.ToString(bolas[bola.Next(bolas.Length)]);
                Console.Write($"{entero[j-1,i]}");
            }
            Console.Write(" ");
        }
        Console.WriteLine();
        int max1=0; int max2=0; int[] c = new int[10];int m=0; int n=0;
        Console.ForegroundColor = ConsoleColor.Green;
        for (int r=0; r<10; r++)
        {
            for (int j=0; j<N; j++)
            {
                if (entero[j,4]==$"{r}")
                {
                    ++C[r];
                }
            }
            if (max1<C[r])
            {
                max1 = C[r];
                m = r;
            }
            
            Console.WriteLine($"Enteros que terminan en {r} son {C[r]}");
        }
        for (int k=0; k<10; k++)
        {
            if(k==m){continue;}
            if (max2<C[k])
            {
                max2 = C[k];
                n=k;
            }
        }
        Console.WriteLine($"Terminación {m} con {max1} repeticiones.");
        Console.WriteLine($"Terminación {n} con {max2} repeticiones.");
        Console.ForegroundColor = ConsoleColor.Green;
    }
}