Lower Or Upper

import java.util.Locale;
import java.util.Scanner;

public class LowerOrUpper {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        String symbol = scanner.nextLine();

        if (symbol == symbol.toUpperCase()) {
            System.out.print("upper-case");
        } else if (symbol == symbol.toLowerCase()) {
            System.out.println("lower-case");
        }
    }
}