#import<iostream>
#define F(a)({for(t=abs(a);t&&t%10<1;t/=10);!t|t>9|a%100;})
main(){long a,b,t,m=1e8;std::cin>>a>>b;t=F(a)|F(b);a*=b;printf(t&&a/m?"E":"%lld",t?a:a/10);}