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updated variable name in hint
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@ -890,9 +890,9 @@ hint = """
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`capitalize_first`:
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The variable `first` is a `char`. It needs to be capitalized and added to the
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remaining characters in `c` in order to return the correct `String`.
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remaining characters in `chars` in order to return the correct `String`.
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The remaining characters in `c` can be viewed as a string slice using the
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The remaining characters in `chars` can be viewed as a string slice using the
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`as_str` method.
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The documentation for `char` contains many useful methods.
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