Question: Implement and test a grammar in FLEX for recognizing simplified prefix arithmetic expressions (max depth of 2) involving operands +,*,/ and IDs A-Z. For example:

Implement and test a grammar in FLEX for recognizing simplified prefix arithmetic expressions (max depth of 2) involving operands +,*,/ and IDs A-Z. For example:

o (+ A B C): the expression is: A+B+C

o (+ (* A B D W) (/ C D)): the expression is: (A*B*D*W) + (C/D)

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