1: (2 5 7)

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

2: (4 20 6)

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

3: (0 17 3)

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

4: (1 7 12)

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