1: (2 5 8)

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

2: (1 6 3)

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

3: (8 11 14)

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

4: (10 17 12)

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