1: (4 7 10)

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

2: (6 11 8)

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

3: (1 10 5)

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

4: (0 9 2)

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