1: (6 9 12)

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

2: (5 11 8)

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

3: (2 9 20)

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

4: (0 19 7)

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