1: (3 7 10)

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

2: (6 11 8)

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

3: (2 10 4)

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

4: (0 9 7)

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