1: (5 8 11)

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

2: (1 9 7)

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

3: (8 13 10)

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

4: (6 14 12)

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