1: (3 8 16)

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

2: (2 9 4)

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

3: (8 19 10)

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

4: (14 20 17)

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