1: (2 7 16)

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

2: (1 14 4)

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

3: (13 18 15)

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

4: (3 10 16)

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