1: (1 4 10)

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

2: (2 12 5)

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

3: (9 13 11)

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

4: (1 8 3)

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