using System;

public class Program

{

    public static void Main()

    {

        int[,] a = new int[2,3];

        Console.WriteLine("Introdueix les coordenades del primer vector: ");

        Console.Write("X = ");

        a[0,0] = int.Parse(Console.ReadLine());

        Console.Write("Y = ");

        a[0,1] = int.Parse(Console.ReadLine());

        Console.Write("Z = ");

        a[0,2] = int.Parse(Console.ReadLine());

        Console.WriteLine("Introdueix les dades del segon vector: ");

        Console.Write("X = ");

        a[1,0] = int.Parse(Console.ReadLine());

        Console.Write("Y = ");

        a[1,1] = int.Parse(Console.ReadLine());

        Console.Write("Z = ");

        a[1,2] = int.Parse(Console.ReadLine());

        Console.WriteLine("El produxcte escalar d'aquests dos vectors és: " + ((a[0,0] * a[1,0]) + (a[0,1] * a[1,1]) + (a[0,2] * a[1,2])));

    }

}