1: (0 1 3)

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

2: (3 7 19)

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

3: (6 21 13)

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

4: (1 19 4)

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