n=4的一些解
...1.1.1...1.1.2...1.2.2...1.1.3...1.1.1...1.1.1...1.2.2...1.1.3...1.2.3
...1.1.1...2.2.2...1.2.2...2.2.3...1.1.1...1.1.2...1.2.2...1.3.3...3.3.3
...1.1.3...2.3.2...3.3.3...2.2.3...1.1.3...2.2.2...2.2.2...2.2.3...3.3.3
...1.2.3...3.3.3...3.3.3...2.2.3...2.2.2...2.2.3...3.3.3...3.3.3...3.3.3
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...1.3.3...1.1.1...1.1.1...1.1.3...1.1.1...1.1.2...1.2.2...1.1.2...1.1.3
...1.3.3...1.1.3...1.2.2...1.2.2...1.2.2...1.2.2...1.2.3...2.2.2...1.2.3
...2.2.3...1.2.3...1.2.3...2.2.2...2.2.3...1.2.2...2.2.2...2.2.2...1.3.3
...2.3.3...1.2.3...2.2.3...2.2.2...3.3.3...3.3.3...2.2.2...2.3.3...3.3.3
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