1: (0 7 11)

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

2: (4 12 9)

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

3: (3 15 6)

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

4: (0 20 12)

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