1: (6 12 15)

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

2: (1 12 18)

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

3: (0 17 3)

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

4: (5 20 7)

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