import java.util.Scanner;
public class KashoHyoka{
	public static void main(String[] args){
	Scanner kb=new Scanner(System.in);
	int a,b;
	a=kb.nextInt();
	b=kb.nextInt();
	if(a+b>a*b){
		System.out.printf("%d\n",a+b);
	}
	else if(a+b==a*b){
		System.out.println("E");
	}else{
		System.out.printf("%d\n",a*b);
	}
	
	kb.close();
	
	}

}