Ok im having trouble writing this program in C. Basically what i have to write is a program that implements a cipher to a string of text. So it will ask the user to imput a Numeric key (lets say for instance 4) and a string of text (I.E ABCDEFG) and the output will be EFGHIJK it has to do that for upper and lower case stuff, and leave numbers alone. Now i have a general idea of how to do it. im guessing you basically have to get the computer to recognize the ACSII code for each character, and develop a function that adds the numeric key value to each character. Problem is i have no clue how to do this. Any ideas/help?