using System;

public class Program

{

    public static void Main()

    {

            //Declaracion 

        float A,B,C;

        //LEER

        Console.WriteLine("Introduce A");

        A = float.Parse(Console.ReadLine());

        Console.WriteLine("Introduce B");

        B = float.Parse(Console.ReadLine());

        Console.WriteLine("Introduce C");

        C = float.Parse(Console.ReadLine());

        //Proceso 

    }

}