1: (3 10 19)

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

2: (3 5 8)

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

3: (1 6 4)

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

4: (7 12 9)

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