1: (6 11 12)

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

2: (2 11 10)

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

3: (5 17 7)

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

4: (0 8 3)

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