1: (3 6 12)

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

2: (5 19 7)

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

3: (3 6 12)

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

4: (1 8 4)

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