1: (0 7 8)

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

2: (8 17 20)

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

3: (14 21 18)

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

4: (6 19 13)

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