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