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1, 11, 21, 111, 121, 211, 221, 321, 1111, 1121, 1211, 1221, 1321, 2111, 2121, 2211, 2221, 2321, 3211, 3221, 3321, 4321, 11111, 11121, 11211, 11221, 11321, 12111, 12121, 12211, 12221, 12321, 13211, 13221, 13321, 14321, 21111, 21121, 21211
(列表;图表;参考;听;历史;文本;内部格式)
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