Compilers and Parsers

For an expression to be valid, a “<” symbol must always have a corresponding “>” character somewhere (not necessary immediately) after it. Moreover, each “>” symbol should correspond to exactly one “<” symbol. So, for instance, the instructions: ```p <> <> <><> ``` are all valid. While: ```p >> ><>< ``` are not. Given some expressions which represent some instructions to be analyzed, you should