1-(5)

1-(2)

1-(1)

1-(4)

1-(3)

1-(8)

1-(7)

1-(6)

1-(9)

1-(10)

1-(11)

1-(14)

1-(13)

1-(12)

1-(15)

1-(16)

1-(17)

1-(18)

1-(20)

1-(19)

1-(21)