using System;

public class Program

{

    public static void Main()

    {

        //Notas de matematica

        double tm1, tm2, tm3, exam, nmat, pmat, pexam;

        Console.WriteLine("Ingrese nota tarea 1:   ");

        tm1 = Double.Parse(Console.ReadLine());

        Console.WriteLine("Ingrese nota tarea 2:   ");

        tm2 = Double.Parse(Console.ReadLine());

        Console.WriteLine("Ingrese nota tarea 3:   ");

        tm3 = Double.Parse(Console.ReadLine());

        Console.WriteLine("Ingrese nota de examen:   ");

        exam = Double.Parse(Console.ReadLine());

    }

}