1: (1 5 11)

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

2: (3 16 8)

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

3: (4 10 7)

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

4: (6 11 21)

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