1: (0 3 7)

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

2: (1 20 6)

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

3: (2 9 5)

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

4: (0 4 9)

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