1: (6 9 12)

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

2: (2 9 7)

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

3: (5 13 11)

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

4: (8 16 10)

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