1: (0 1 2)

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

2: (2 16 20)

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

3: (14 21 19)

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

4: (3 17 15)

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