1: (2 7 12)

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

2: (1 9 3)

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

3: (6 20 7)

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

4: (0 18 4)

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