A

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ejercicio6
{
    public class Alumno
    {
        private string apellido;
        private string carrera;
        private int lu;
        private int anioDeIngreso;

        public string Apellido
        {
            get { return this.apellido; }
            set { this.apellido = value; }
        }

        public string Carrera
        {
            get { return this.carrera; }
            set { this.carrera = value; }
        }

        public int Lu
        {
            get { return this.lu; }
            set { this.lu = value; }
        }

        public int AnioDeIngreso
        {
            get { return this.anioDeIngreso; }
            set { this.anioDeIngreso = value; }
        }

        public Alumno()
        {
            Apellido = "";
            Carrera = "";
            Lu = 0;
            AnioDeIngreso = 0;
        }
    }
}