1: (4 9 19)

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

2: (0 10 8)

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

3: (4 9 19)

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

4: (2 20 17)

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