Write a C Shell program that would have for input arguments. These four input arguments would all be integers. The shell script program should find the sum of (a*i + b) for i starting at c and going all the way to d. What are a, b, c, and d? These are the four arguments used when the script file is called (also called positional parameters).

An example of the call would be:

shellname 7 3 8 11

What your c script should do is:

(7*8 + 3) + (7*9 + 3) + (7*10 + 3) + (7*11 + 3) = 278

Of course, the program could be called with any four integers as the positional parameters.