avg

using System;

public class Program
{
    public static void Main()
    {
        int rowsCount = int.Parse(Console.ReadLine());
        int colsCount = int.Parse(Console.ReadLine());
        int[,] matrix = new int[ rowsCount,colsCount];

        for ( int row=0 ;row < matrix.GetLength(0);row++)
        {
            for(int col=0;col<matrix.GetLength(1);col++)
            {
                matrix[row, col] = int.Parse(Console.ReadLine());
            }
        }
        for ( int row=0 ;row < matrix.GetLength(0); row++)
            {
                double avg = 0;
            for(int col=0;col < matrix.GetLength(1); col++)
            {
                Console.Write(matrix[row, col] + " " );
                avg +=matrix[row, col];
            }
            Console.WriteLine(avg/ matrix.GetLength(1));
            }
    }
}