1: (4 9 12)

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

2: (8 13 11)

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

3: (6 15 12)

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

4: (2 10 7)

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