#include <bits/stdc++.h>

using namespace std;

ifstream f("multiplu.in");
ofstream g("multiplu.out");

int a, b, m;

void bfs(int start){
    queue<int> q;
    q.push(start);
    while(!q.empty()){
        int cval = q.front();
        if(cval % m == 0){
            g << cval;
            break;
        }

        q.push(cval * 10);
        q.push(cval * 10 + 1);
        q.pop();
    }
}

int main(){
    f >> a >> b;
    f.close();

    m = (a * b) / __gcd(a, b);
    bfs(1);
    g.close();
}