1: (0 1 6)

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

2: (0 10 3)

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

3: (4 20 7)

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

4: (5 11 8)

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