1: (4 10 12)

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

2: (9 17 11)

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

3: (2 12 8)

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

4: (0 5 3)

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