Q$2.(50$marks$)$ Write a C$++$ program for a string decoder. $1)$ The program prompts the user to enter a string, for example: p$($ab$($dfe$)$ghk$)$q$.$ There are nested words enclosed within parentheses. $2)$ The decoder's job is to extract and reverse each nested word, removing the parentheses in the process. $3)$ If a nested structure has other nested structures within it$,$ it should be decoded from the inner structure first and then to outer one. $4)$ Write a recursive function decodeLanguage that returns the decoded strings and print it out in the main function. Here are some detailed examples: $$ p$($ab$($dfe$)$ghk$)$q removing the inner most parentheses, we get p$($abefdghk$)$q; p$($abefdghk$)$q removing the outer parentheses pkhgdfebaq, which is the final output $$ a$($b$($c$)$d$)$e will output adcbe $$ abcde will output abcde Hints: $-$ Find the innermost parentheses first and reverse the string inside them. $-$ Recursively decode and replace until no parentheses remain in the string.