1: (3 9 12)

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

2: (8 13 11)

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

3: (5 15 12)

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

4: (4 10 7)

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