1: (3 7 12)

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

2: (0 8 6)

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

3: (3 7 12)

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

4: (1 19 4)

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