Fall Back Son

use an if statement to verify that the input is between a and z. you might need two conditions (an || ) if you're also accepting A-Z. I don't remember exactly but its in the ASCII table. C++ might have a function that skips whitespace. If not you can easily make your own by reading the input into a String, then 'deleting' any whitespace. you could do this by making a char var = " "; then trying to match it against each part of the String.