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## Syntax Diagrams 

The diagrams for Letter, Digit, Identifier. Directive, UnsignedInteger, UnsignedNumber, and CharacterString d\:'scribe the formation of lexical symbols from characters. The other diagrams described the formation of syntactic constructions from symbols. 

<img src='content_image/720476.jpg'>

<img src='content_image/720477.jpg'>

