1: (6 7 8)

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

2: (4 8 11)

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

3: (2 10 5)

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

4: (4 9 7)

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