import java.util.Scanner;

class Main{
	public static void main(String[] args) {
		Scanner stdIn=new Scanner(System.in);
		long a=stdIn.nextLong(),b=stdIn.nextLong(),c,d,f=0;
		if(a>0) c=a;
		else c=-a;
		do {
			if(c%10!=0) f++;
			c/=10;
		}while(c>9);
		if(b>0) d=b;
		else d=-b;
		do {
			if(d%10!=0) f++;
			d/=10;
		}while(d>9);
		if(a>0) c=a;
		else c=-a;
		if(b>0) d=b;
		else d=-b;
		if(100>c||100>d) f++;
		if(f>0) {
			if(a*b>=-99999999&&99999999>=a*b) System.out.print(a*b);
			else System.out.print("E");
		}
		else System.out.print(a*b/10);
	}
}