I think Jamal should put the purple car so where point A(s) faces in N and then B faces the back. Or, he can move the green car to where it should be part D(n) faces S and part C faces the back. I think this because if you keep the purple car with N + N facing each other, it won't move the car at all and it would force each other apart. Also, the same thing for the green car, if you keep the green car with S + S facing each other, it won't move the car at all and it would force each other apart.