1: (3 9 12)

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

2: (6 13 11)

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

3: (8 15 10)

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

4: (7 20 12)

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