1: (1 5 8)

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

2: (4 11 6)

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

3: (3 13 8)

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

4: (10 16 12)

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