Receive as input a single digit. If the user enters a single digit then output "Thank You". If the user enters a letter display "No, that's a letter". If the user enters an alphabetic character that is neither a digit not a letter display invalid input
Input format:
A single digit should be entered
Ouput format:
A single line displaying a message starting "Thank You" if a digit was entered,"No, that's a letter" if a letter was enterd or "invalid data" if neither an alphabetic character not digit was entered
run 1:
Enter a digit:3