#include <iostream>
#include <fstream>
#include <queue>
#include <string>
#include <set>
using namespace std;

int a,b,m,mm[2000005];
queue<pair<string,int> > c;

int cmmdc(int a, int b) {
    int c;
    for(;b;) {
        c=a%b;
        a=b;
        b=c;
    }
    return a;
}

int main()
{
    ifstream f("multiplu.in");
    ofstream g("multiplu.out");
    f>>a>>b;
    m=(a*b)/cmmdc(a,b);
    for(c.push(make_pair("1",1));c.size(); c.pop()) {
        string fr=c.front().first;
        int mc=c.front().second;
        if(mm[mc]) continue;
        mm[mc]=1;
        if(mc==0) {
            g<<fr;
            return 0;
        }
        int md=(mc*10)%m;
        c.push(make_pair(fr+"0",md));
        c.push(make_pair(fr+"1",(md+1)%m));
    }
    return 0;
}