1: (1 6 10)

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

2: (5 12 8)

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

3: (1 15 11)

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

4: (9 16 13)

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