n=3的一些解
..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
..1....1....1....1....1....1....1....1....1....1....1....1....1....1....1....1
..2....0....0....2....2....2....1....2....2....0....2....2....2....2....2....0
..3....1....2....0....3....2....2....3....3....2....3....3....0....2....3....2
..1....2....2....3....2....3....3....1....4....3....1....0....2....3....4....3
..4....3....3....4....0....0....1....3....5....4....2....3....3....4....5....4
..3....4....4....2....4....4....4....4....4....3....4....4....4....4....3....2
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