1: (4 7 11)

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

2: (0 2 7)

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

3: (1 20 3)

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

4: (6 12 8)

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