1: (0 3 8)

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

2: (2 20 5)

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

3: (4 10 7)

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

4: (1 6 8)

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