1: (1 7 10)

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

2: (6 18 9)

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

3: (2 20 17)

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

4: (0 10 5)

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