1: (6 8 12)

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

2: (3 10 12)

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

3: (4 20 7)

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

4: (9 14 11)

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