1: (4 10 12)

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

2: (9 13 11)

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

3: (8 18 12)

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

4: (5 20 17)

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