1: (4 7 16)

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

2: (3 10 5)

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

3: (0 8 6)

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

4: (7 17 9)

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