1: (8 10 15)

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

2: (2 5 15)

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

3: (0 7 3)

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

4: (4 12 6)

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