1: (5 9 12)

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

2: (2 11 8)

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

3: (1 6 4)

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

4: (9 13 14)

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