#include <bits/stdc++.h>
using namespace std;

int main()
{
    int a[2];
    cin >> a[0] >> a[1];

    long long t = 1LL * a[0] * a[1];

    int c = 0;
    for( int x : a ){
        string s = to_string(abs(x));
        if( s.size() > 1 ) s = s.substr(2);
        for( auto x : s ) if( c += (x != '0') ) continue;
    }

    if( !c ) cout << t / 10;
    else if( t < 1e8 ) cout << t;
    else cout << "E";
    cout << endl;

    return 0;
}