1: (5 9 18)

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

2: (1 16 7)

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

3: (6 11 8)

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

4: (2 9 19)

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