turn(tartaruga,act,venire,16,1,21-33)
turn(pro,dirs,dire,16,2,22-34)
turn(pro,dirs,dire,16,3,23-35)
turn(pro,dirs,dire,16,3,23-35)

turn(tartaruga, dirs, dire, 16, 3, 23-35).
turn(tartaruga, dirs, dire, 16, 3, 23-35).
turn(tartaruga, dirs, dire, 16, 2, 22-34).
turn(tartaruga, act, venire, 16, 1, 21-33).
