1: (2 9 12)

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

2: (8 13 11)

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

3: (4 16 12)

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

4: (1 6 3)

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