1: (3 10 20)

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

2: (0 17 8)

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

3: (2 15 4)

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

4: (7 19 10)

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