1: (2 6 12)

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

2: (1 9 3)

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

3: (8 13 11)

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

4: (2 18 4)

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