n=5的一些解
..0..0..1..2....0..0..1..0....0..0..1..0....0..0..1..2....0..0..1..1
..0..1..2..1....1..1..2..0....1..0..1..0....1..2..1..1....0..0..2..0
..2..3..1..2....2..0..1..1....0..1..2..2....3..2..0..3....3..1..2..0
..0..2..2..3....2..0..2..2....2..3..2..2....3..0..1..3....3..1..1..2
..2..0..0..1....1..1..3..2....3..1..1..3....2..1..1..2....0..2..0..2
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