1: (0 2 12)

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

2: (1 21 3)

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

3: (12 18 20)

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

4: (9 19 16)

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