1: (1 4 9)

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

2: (0 8 2)

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

3: (3 20 5)

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

4: (4 19 7)

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