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Hi.<P>I am stuck with an intesting problem with the string library. Let say declare a string (empty). To start out, I append a statement. Afterward, I want to append an integer and end it with a char.

The following is a simple mixed integer programming problem. Details can be found in Example 3.8 in the "Examples" section. data; input _row_ $10. choco gumdr ichoco igumdr _type_ $ _rhs_; datalines; ...