1: (4 10 12)

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

2: (9 16 11)

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

3: (2 12 8)

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

4: (0 5 3)

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