n=3的一些解
..5....3....6....5....0....1....1....2....6....2....2....5....6....6....2....2
..3....5....3....2....1....7....3....0....2....3....7....0....2....2....7....7
..1....7....0....2....4....3....2....5....3....4....3....0....5....3....1....7
..5....6....7....7....0....6....6....1....5....7....4....2....7....7....7....5
..5....7....0....5....3....5....1....4....6....5....6....3....1....7....4....2
..1....3....7....4....2....1....1....6....3....6....6....4....4....6....1....6
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