1: (1 7 12)

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

2: (4 15 9)

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

3: (5 10 8)

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

4: (1 17 14)

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