1: (1 4 9)

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

2: (3 11 5)

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

3: (0 6 2)

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

4: (4 20 7)

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