1: (4 15 18)

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

2: (2 15 5)

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

3: (14 19 16)

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

4: (6 20 17)

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