import java.util.concurrent.locks.*;

class Kode {
    private Lock lock = new ReentrantLock();
    private String code;


    public boolean compareCode(String s){
        return s.equals(code);
    }
    public void addCode(String c){
        lock.lock();
        try {
            code = c;
        }
        finally {
            lock.unlock();
        }
    }
    public String getCode(){
        return code;
    }
}