#include <fstream>
using namespace std;
ifstream f("multiplu.in");
ofstream g("multiplu.out");
bool v[25];
int main()
{
    int a,b,n,c;bool p=true;
    f>>a>>b;
    for(int i=0;i<=1048576&&p==true;++i)
    {
        unsigned long long nr=0,j=i;c=-1;
        while(j!=0)
        {
            v[++c]=j%2;
            j/=2;
        }
        for(int ii=c;ii>=0;--ii)
            nr=nr*10+v[ii];
        if(nr%a==0&&nr%b==0&&nr!=0)
            g<<nr,p=false;
    }
    return 0;
}