A Caesar cypher is one that encodes a string by substituting letters in a pre-determined pattern. For example, the cypher of the string abc would become def when rotated by 3 (substituting the letter 3 letters forward in the alphabet for each character in the string.) This is a good site that will allow you test the functionality of a Caesar cypher. Instructions

Ask the user to input a single word

If the word contains a space, print the message "Error!" and end the program
Ask the user to input an integer between 0 and 25

If the the input is not an integer or does not fall into the range of 0-25, print the message "Error!" and end the program