n=3的一些解
..0..0..1..1....0..0..0..0....0..0..1..1....0..0..1..1....0..0..1..1
..0..1..1..0....0..1..1..2....0..1..1..2....0..1..1..1....0..1..1..0
..0..0..0..0....1..1..2..1....2..2..2..2....0..0..1..1....0..0..0..0
..0..1..1..0....1..2..1..1....0..0..0..0....0..2..2..2....1..1..1..1
..1..1..0..1..2..1..1..1..3..3.3..1..2..1..0...2...2...2...2...2...2..2
..0...0...1...1...2...2...2...3...1...1...1...0...3...3...3...3
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