1: (1 5 10)

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

2: (4 15 7)

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

3: (9 16 13)

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

4: (1 14 11)

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