1: (5 10 11)

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

2: (8 13 10)

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

3: (4 12 6)

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

4: (1 9 7)

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