1: (5 8 12)

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

2: (1 9 12)

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

3: (4 20 6)

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

4: (0 18 2)

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