write a program using python to answer the following questions. please include extra information as well.

1.Ones Having a grammar for a language that accepts expressions with at least 1 number 1, this could be its regular expression: 1+ You can also have a grammar like this: # ::= 1 | 1 . You already must have the parser in Python. Create an interpreter for this language, so the input will be considered as a number in unary, like this: 1 1 Result: 2 1 1 1 1 Result: 4 2. Same The same as the previous problem, but with Lex/Yacc