using System;

public class Program

{

    public static void Main()

    {

         int[,] arr =  new int [,]{{1,  2,  3,  4,  5,  6},

        {7,  8,  9,  10, 11, 12},

         {13, 14, 15, 16, 17, 18}};

        spiralPrint(3, 6, arr);

    }

    public static void spiralPrint(int M , int N , int[,] arr)

    {

        //M= 3 N =6

        int i =0 , k=0 , l=0;

        while(k<M && l<N)

        {

            for( i =l; i<N; i++)

            {

                Console.Write(arr[k,i]);

            }

            k++;

            for(i=k ; i<M;i++)

            {

                Console.Write(arr[i,N-1]);

            }

            N--;

            if(k<M)

            {

                for(i= N-1; i>=l;i--)

                {

                    Console.Write(arr[M-1,i]);

                }

                M--;

            }

            if(l<N)

            {

                for(i= M-1; i>=k;i--)

                {

                    Console.Write(arr[i,l]);

                }

            }

            l++;

        }

    }

}