1: (0 1 2)

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

2: (2 7 10)

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

3: (6 17 8)

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

4: (1 10 3)

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