1: (2 8 12)

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

2: (1 10 3)

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

3: (7 11 9)

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

4: (4 8 13)

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