1: (1 7 10)

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

2: (4 11 9)

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

3: (1 7 10)

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

4: (2 8 6)

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