1: (3 5 10)

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

2: (7 10 20)

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

3: (6 11 8)

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

4: (5 19 10)

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