1: (1 5 18)

(0 7 3)(1 5 18)(2 20 15)(4 19 17)(6 10 8)(9 14 11)(12 16 13)

2: (4 19 17)

(0 7 3)(1 5 18)(2 20 15)(4)(6 10 8)(9 14 11)(12 16 13)(17)(19)

3: (1 5 18)

(0 7 3)(1)(2 20 15)(4)(5)(6 10 8)(9 14 11)(12 16 13)(17)(18)(19)

4: (2 20 15)

(0 7 3)(1)(2)(4)(5)(6 10 8)(9 14 11)(12 16 13)(15)(17)(18)(19)(20)