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