1: (2 9 15)

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

2: (0 11 8)

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

3: (1 13 3)

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

4: (9 20 12)

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