#include <fstream>
#include <queue>

using namespace std;

ifstream cin("multiplu.in");
ofstream cout("multiplu.out");

int gcd(int A, int B)
{
    if(B == 0)
        return A;
    return gcd(B, A % B);
}

int main()
{
    int A, B;
    cin >> A >> B;

    int lcm = A / gcd(A, B) * B;

    queue<int> Q;
    Q.push(1);
    bool terminat = false;
    int answer = 0;
    while(!terminat)
    {
        int x = Q.front();
        Q.pop();

        if(x % lcm == 0)
            answer = x, terminat = true;
        
        Q.push(x * 10);
        Q.push(x * 10 + 1);
    }

    cout << answer;


    return 0;
}