import java.util.Scanner; 
class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String input = scanner.next();
        String lower = input.toLowerCase();

        System.out.println( ( lower.equals(input) ) ? 'a': 'A');
    }
} import java.util.Scanner; Scanner java.util class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String input = scanner.next();
        String lower = input.toLowerCase();

        System.out.println( ( lower.equals(input) ) ? 'a': 'A');
    }
} Main public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String input = scanner.next();
        String lower = input.toLowerCase();

        System.out.println( ( lower.equals(input) ) ? 'a': 'A');
    } main {
        Scanner scanner = new Scanner(System.in);
        String input = scanner.next();
        String lower = input.toLowerCase();

        System.out.println( ( lower.equals(input) ) ? 'a': 'A');
    } Scanner scanner = new Scanner(System.in); scanner new Scanner(System.in) String input = scanner.next(); input scanner.next() scanner.next scanner String lower = input.toLowerCase(); lower input.toLowerCase() input.toLowerCase input System.out.println( ( lower.equals(input) ) ? 'a': 'A') System.out.println System.out System System.out ( lower.equals(input) ) ? 'a': 'A' ( lower.equals(input) ) lower.equals lower input 'a' 'A' String[] args args
import java.util.Scanner; 
class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String input = scanner.next();
        String lower = input.toLowerCase();

        System.out.println( ( lower.equals(input) ) ? 'a': 'A');
    }
}