1: (4 8 10)

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

2: (6 12 8)

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

3: (1 11 9)

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

4: (2 7 5)

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