1: (3 6 8)

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

2: (7 8 20)

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

3: (1 9 4)

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

4: (0 19 2)

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