76. Rooster one, worth five coins, hen one, worth three coins, three chicks, worth one coin, buy a hundred chickens with a hundred coins. The rooster is at most $\qquad$.

将上面的文本翻译成英文，请保留源文本的换行和格式，直接输出翻译结果。 

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Note: The last sentence is a note and not part of the text to be translated, so it is omitted in the translation.
answer: 12