Answer to Question #25356 in C# for jack

Question

please help me

i want to write a code that look up the longest valid infix expression in the text and return its evaluation

we want to use stack ,string ,queue
....as :

Input example:
“abcd 6 (4+3)*9yuy 6*((4+2)-(8-2))”

Output:

6 * ( ( 4 + 2 ) – ( 8 – 2 ) )
.............................................
thanx