1: (2 8 11)

(0 20 1)(2 9 6)(3 8 19 11 4)(5 14 12 10 7)(13 17 15)(16 21 18)

2: (7 12 10)

(0 20 1)(2 9 6)(3 8 19 11 4)(5 14 12)(7)(10)(13 17 15)(16 21 18)

3: (4 19 11)

(0 20 1)(2 9 6)(3 8 19)(4)(5 14 12)(7)(10)(11)(13 17 15)(16 21 18)

4: (2 9 6)

(0 20 1)(2)(3 8 19)(4)(5 14 12)(6)(7)(9)(10)(11)(13 17 15)(16 21 18)