1: (3 7 11)

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

2: (2 10 4)

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

3: (9 11 12)

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

4: (0 8 6)

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