import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); while(sc.hasNext()) { char c=sc.next().charAt(0); if(c>=65&&c<=90||c>=97&&c<=122) { System.out.println(c+" is an alphabet."); }else{ System.out.println(c+" is not an alphabet."); } } } }