1: (0 1 2)

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

2: (1 4 18)

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

3: (2 20 16)

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

4: (6 19 17)

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