1: (4 8 9)

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

2: (1 9 20)

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

3: (0 19 3)

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

4: (1 10 8)

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