1: (5 10 20)

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

2: (4 12 6)

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

3: (8 18 11)

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

4: (1 7 10)

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