#include <string>
#include <iostream>
using namespace std;
string a,b,c;
char A;
int main()
{
cin>>a>>A>>b;
if(A=='+')
{
if(a.length()==b.length())
{
cout<<"2";
for(int x=1; x<a.length(); x++)cout<<"0";
}
else
{
if(a.length()<b.length())
{
c=a;
a=b;
b=c;
}
cout<<"1";
for(int x=1; x<a.length(); x++)
{
if(a.length()-b.length()==x) cout<<"1";
else cout<<"0";
}
}
}
else if(A=='*')
{
cout<<"1";
for(int x=0; x<a.length()+b.length()-2; x++) cout<<"0";
}
}