import java.io.*;
import java.util.*;


public class Main_yukicoder722 {

	private static Scanner sc;
	private static Printer pr;

	private static void solve() {
		long a = sc.nextInt();
		long b = sc.nextInt();
		
		if (a == 0 || b == 0) {
			pr.println(0);
			return;
		}

		int n = 0;
		long tmpa = a;
		while (tmpa % 10 == 0) {
			n++;
			tmpa /= 10;
		}
		int m = 0;
		long tmpb = b;
		while (tmpb % 10 == 0) {
			m++;
			tmpb /= 10;
		}
		
		if (tmpa < 10 && tmpb < 10) {
			pr.print(tmpa * tmpb);
			for (int i = 0; i < n + m - 1; i++) {
				pr.print('0');
			}
			pr.println();
		} else {
			if (a * b < 100_000_000 && a * b > -100_000_000) {
				pr.println(a * b);
			} else {
				pr.println('E');
			}
		}
	}

	// ---------------------------------------------------
	public static void main(String[] args) {
		sc = new Scanner(INPUT == null ? System.in : new ByteArrayInputStream(INPUT.getBytes()));
		pr = new Printer(System.out);

		solve();

//		pr.close();
		pr.flush();
//		sc.close();
	}

	static String INPUT = null;

	private static class Printer extends PrintWriter {
		Printer(OutputStream out) {
			super(out);
		}
	}
}