1: (1 7 11)

(0 20 17 15 2)(1 9 16 11 3)(4 13 10 8 5)(6 14 12)(7)(18 21 19)

2: (4 13 10)

(0 20 17 15 2)(1 9 16 11 3)(4 8 5)(6 14 12)(7)(10)(13)(18 21 19)

3: (3 16 11)

(0 20 17 15 2)(1 9 16)(3)(4 8 5)(6 14 12)(7)(10)(11)(13)(18 21 19)

4: (2 17 15)

(0 20 17)(1 9 16)(2)(3)(4 8 5)(6 14 12)(7)(10)(11)(13)(15)(18 21 19)