#import<bits/stdc++.h>
using namespace std;main(){long a,b,t,u;cin>>a>>b;for(t=abs(a);t>999&t%10<1;t/=10);for(u=abs(b);u>999&u%10<1;u/=10);a*=b;t/1000|t%100|!t|u/1000|u%100|!u?a/100000000?cout<<"E":cout<<a:cout<<a/10;}