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