/* 
 * Mystery program
 * @author	Biagioni, Edoardo
 * @assignment	lecture 3
 * @date	January 16, 2008
 * @bugs	none
 */

public class MysteryProgram1 {
    public static void main(String [] arguments) {
	if (arguments.length != 1) {
	    System.out.println("expecting 1 command-line argument, got " +
			       arguments.length);
	    System.exit(1);
	}
	int result = 0;
	for (int i = 0; i < arguments[0].length(); i++) {
	    result *= 10;
	    result += Character.digit(arguments[0].charAt(i), 10);
	}
	System.out.println("result is " + result);
    }
}