1: (1 7 8)

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

2: (2 11 14)

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

3: (10 15 13)

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

4: (1 14 4)

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