1: (6 11 15)

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

2: (8 19 12)

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

3: (11 16 14)

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

4: (9 20 18)

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