import jline.ConsoleReader;
import java.io.IOException;
class Program01 {
	public static void main(String[] args) throws IOException {
		
		ConsoleReader cr = new ConsoleReader();		
		int kod;
		do {
			kod = cr.readVirtualKey();
			System.out.printf("Kod: %d\n", kod);			
		}while(kod!=0x1B); 
		// Esc billentyű decimális 27, hexadecimálisan 1B
	}
}