1: (2 7 15)

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

2: (0 8 6)

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

3: (1 20 3)

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

4: (7 16 9)

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