1: (3 8 11)

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

2: (6 15 8)

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

3: (2 13 4)

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

4: (1 7 5)

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