1: (3 8 15)

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

2: (8 17 20)

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

3: (1 18 5)

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

4: (2 7 4)

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