#include <bits/stdc++.h>
using namespace std;
#define REP(i,a,n) for(int i=(a); i<(int)(n); i++)
#define rep(i,n) REP(i,0,n)
#define FOR(it,c) for(__typeof((c).begin()) it=(c).begin(); it!=(c).end(); ++it)
#define ALLOF(c) (c).begin(), (c).end()
typedef long long ll;
typedef unsigned long long ull;


int main(){
  ll A, B;
  cin >> A >> B;
  bool flgA = false, flgB = false;
  if(A < 0){
    flgA = true;
    A *= -1;
  }
  if(B < 0){
    flgB = true;
    B *= -1;
  }
  
  if(A >= 100 && A % 100 == 0 && B >= 100 && B % 100 == 0){
    int n = 0, m = 0;
    while(A % 10 == 0){ n++; A/=10; }
    while(B % 10 == 0){ m++; B/=10; }

    if((flgA&&(!flgB)) || ((!flgA)&&flgB)) cout << "-";
    cout << A*B;
    rep(i,n+m-1) cout << "0";
    cout << endl;
  }else{
    if(flgA) A *= -1;
    if(flgB) B *= -1;
    ll ret = A * B;
    if(-99999999LL <= ret && ret <= 99999999LL){
      cout << ret << endl;
    }else{
      cout << "E" << endl;
    }
  }
  
  return 0;
}