1: (3 7 8)

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

2: (7 10 14)

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

3: (1 12 9)

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

4: (2 17 4)

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