INGRESAR 5 NOTAS Y CALCULAR EL PROMEDIO DE LAS 3 NOTAS MAS ALTAS.

def promedio_notas ():
    a = int(input("ingrese nota 1"))
    b = int(input("ingrese nota 2"))
    c = int(input("ingrese nota 3"))
    d = int(input("ingrese nota 4"))
    e = int(input("ingrese nota 5"))

    if a > b and a > c and b > d and b > e and c > d and c > e:
        promedio = (a + b + c) / 3
    elif a > b and a > c and a > d and a > e and b > c and b > e:
        promedio = (a + b + d) / 3
    elif a > b and a > c and a > d and a > e and b > c and b > d:
        promedio = (a + b + e) / 3
    elif a > b and a > c and a > d and a > e and c > b and c > d:
        promedio = (a +