1: (7 12 16)

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

2: (6 13 8)

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

3: (4 12 11)

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

4: (2 9 5)

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