1: (6 7 12)

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

2: (4 9 12)

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

3: (5 13 11)

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

4: (8 15 10)

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