1: (1 10 20)

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

2: (0 19 3)

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

3: (1 18 7)

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

4: (5 12 8)

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