1: (0 1 2)

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

2: (2 8 18)

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

3: (1 16 6)

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

4: (12 19 17)

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