import net.jini.url.httpmd.HttpmdUtil;
import java.net.URL;

public class PrintDigest {

    public static void main(String[] args) {
	if (args.length == 0) {
	    System.out.println("");
	    return;
	}
	String codebase = args[0];
	try {
	    System.out.println(HttpmdUtil.computeDigest(
							new URL(codebase), 
							"MD5"));
	} catch(Exception e) {
	    System.out.println(codebase);
	}
    }
}