1: (5 7 12)

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

2: (4 8 6)

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

3: (7 14 9)

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

4: (10 17 13)

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