public class Main {

    public static void main(String[] argv)
    {
        String binary = "101101";
        binary = binary.substring(0, binary.length() - 1) + "0";
        System.out.println(binary);

        binary = "101100";
        binary = binary.substring(0, binary.length() - 1) + "0";
        System.out.println(binary);
    }
}