using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication8
{
    class Program
    {
        static void Main(string[] args)
        {
            int currentPosition = 0;
            string message = "привет привет привет";
            string [,] array = new string[5,5];
            for (int i = 0; i < 5; i++)
            {
                for (int j = 0; j < 5; j++)
                {
                    array[j, i] = message.Substring(currentPosition, 1);
                    Console.Write(array[j, i]);
                    currentPosition++;
                }
                Console.WriteLine();
            }
            Console.Read();
        }
    }
}