portal programing fundamentals

using System;
using System.Collections.Generic;

public class Program
{
    public static void Main()
    {

        int numofrows=int.Parse(Console.ReadLine());

        List<string>matrixlist=new List<string>();
        char start='s';
        char end='e';
        int[]position=new  int[2];
        int count=0;
        int []exitposition=new int[2];

        for(int i=0;i<numofrows;i++)
        {
            string input=Console.ReadLine().ToLower();
            matrixlist.Add(input);

            if(input.Contains(start.ToString()))
            {
                position[0]=i;
                int rownum=input.LastIndexOf('s');
                position[0]=i;
                position[1]=rownum;

            }
            if(input.Contains(end.ToString()))
            {
                position[0]=i;
                int rownum=input.LastIndexOf('e');
                exitposition[0]=i;
                exitposition[1]=rownum;

            }
        }
        char[] commands=Console.ReadLine().ToCharArray();
        bool exit=false;
        for(int k=0;k<commands.Length;k++)
        {

            // проверка дали движението е възможно и ако не да се изпълни следащото условие
            //бих го направил с метод може и с switch може и пак с bool
            // нещо такова ти трябав не 200 реда Д:
                int row;
                string currentrow;
            switch(commands[k].ToString().ToLower())
            {


                case "u":
                if(position[0]-1<=0)
                {
                    position[0]-=1;
                }
                else
                {
                    position[0]=0;
                }
                break;

                case "d":
                if(position[0]+1<=matrixlist.Count)
                {
                    position[0]+=1;
                }
                else
                {
                    position[0]=matrixlist.Count;
                }
                break;

                 case "r":
                  row=position[0];
                  currentrow=matrixlist[row];

                if(position[1]+1>currentrow.Length)
                {
                    position[1]=0;
                }
                else
                {
                    position[1]+=1;
                }
                break;

                 case "l":
                 row=position[0];
                 currentrow=matrixlist[row];

                if(position[1]-1<0)
                {
                    position[1]=currentrow.Length;
                }
                else
                {
                    position[1]-=1;
                }
                break;
            }
        count++;
        exit=position[0]==exitposition[0] && position[1]==exitposition[1];
        }

        if(exit)
        {
            Console.WriteLine("Experiment successful. {0} turns required.",count);
        }
        else
        {
            Console.WriteLine("Robot stuck at {0} {1}. Experiment failed",position[0],position[1]);
        }



    }
}