1: (0 1 5)

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

2: (3 5 21)

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

3: (2 6 4)

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

4: (1 19 5)

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