1: (3 7 15)

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

2: (6 19 8)

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

3: (3 7 15)

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

4: (1 18 4)

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