using System;

public class Program

{

public static void Main()

{

int N1, N2, N3, P;

Console.WriteLine("Ingrese Primera Nota Parcial: ");

N1 = Convert.ToInt32(Console.ReadLine());

Console.WriteLine("Ingrese Segunda Nota Parcial: ");

N2 = Convert.ToInt32(Console.ReadLine());

Console.WriteLine("Ingrese Tercera Nota Parcial: ");

N3 = Convert.ToInt32(Console.ReadLine());

P = (N1 + N2 + N3) / 3;

Console.WriteLine("Promedio: " + P);

}

}