1: (1 7 11)

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

2: (6 14 8)

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

3: (5 12 10)

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

4: (4 13 11)

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