1: (0 3 10)

(0 6 3 15 1)(2 20 5)(4 18 16 13 8)(7 11 9)(10 14 12)(17 21 19)

2: (2 20 5)

(0 6 3 15 1)(2)(4 18 16 13 8)(5)(7 11 9)(10 14 12)(17 21 19)(20)

3: (4 18 8)

(0 6 3 15 1)(2)(4)(5)(7 11 9)(8 16 13)(10 14 12)(17 21 19)(18)(20)

4: (7 11 9)

(0 6 3 15 1)(2)(4)(5)(7)(8 16 13)(9)(10 14 12)(11)(17 21 19)(18)(20)