1: (4 10 12)

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

2: (9 14 11)

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

3: (7 17 12)

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

4: (5 18 16)

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