1: (3 7 8)

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

2: (5 9 7)

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

3: (1 6 4)

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

4: (5 10 8)

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