n=5的所有解
..5….3….5….4….0….0….0….1….1….5….0….4….5….0….0
..5….3….5….4….0….0….0….4….2….4….0….5….5….0….0
..4….2….2….3….5….3….4….4….4….2….0….1….0….5….0
..4....3....2....2....5....3....4....1....2....5....0....5....5....0....5
..2....4....4....4....0....4....3....4....4....2....5....2....2....4....3
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