1: (2 7 10)

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

2: (6 19 8)

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

3: (2 7 10)

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

4: (3 20 17)

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