#include <fstream>
using namespace std;
ifstream fin ("multiplu.in");
ofstream fout("multiplu.out");
int a,b,x,y,r,m,p,u,k,ok,crt,C[2000010],U[2000010],V[2000010],t[2000010];
void T(int u)
{
    if(u!=0)
    {
        T(t[u]);
        fout<<U[u];
    }
}
int main ()
{
    fin>>a>>b;
    x=a;
    y=b;
    while(y!=0)
    {
        r=x%y;
        x=y;
        y=r;
    }
    m=a/x*b;
    C[1]=1;
    p=1;
    u=1;
    V[1]=1;
    U[1]=1;
    while(p<=u&&ok==0)
    {
        for(k=0;k<=1;k++)
        {
            crt=(C[p]*10+k)%m;
            if(V[crt]==0)
            {
                u++;
                C[u]=crt;
                V[crt]=1;
                U[u]=k;
                t[u]=p;
                if(crt==0)
                {
                    ok=1;
                    break;
                }
            }
        }
        p++;
    }
    T(u);
    return 0;
}