INI-file

The INI file format is a de facto standard for configuration files. INI files are simple text files with a basic structure. They are commonly associated with Microsoft Windows, but are also used on other platforms.

Each line in INI-file stands for key-value mapping or defines new section. A key-value line has a format "key=value",where key — is the name of some property, and value — it's value. It is possible that it will be spaces from the both sides of key and/or value, the spaces should be ignored.

A section line has a format "[section]". It means that all key-value lines after it define properties of the specified section. Of cause, the following section line changes the current section. A section line may have spaces around any of brackets.

Also you should ignore comment lines — the first non-space character of comment line is ";".

You task is to write the program which will format given INI-file in a special way:

• first, print key-value lines which do not belong to any section;
• print all the sections in the lexicographical (alphabetical) order of their names;
• inside each of two previous items, order key-value lines lexicographically by "key";
• if there are more than one key-value lines with the same key inside a single section (or outside any sections), leave only one line (which appears later in the input data);
• remove all redundant spaces and lines.