1: (1 10 12)

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

2: (9 20 11)

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

3: (0 19 4)

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

4: (10 13 15)

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