1: (3 7 11)

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

2: (9 11 18)

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

3: (0 8 6)

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

4: (1 20 4)

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