#include <fstream>
#include <vector>
using namespace std;
ifstream fi("multiplu.in");
ofstream fo("multiplu.out");
const long long NMAX=1e8+5;
int a,b,lcm,dp[NMAX],nr;
vector <int> M;
int gcd(int a,int b)
{
    int r;
    while(b)
    {
        r=a%b;
        a=b;
        b=r;
    }
    return a;
}
int afis(int nr)
{
    while(nr)
    {
        M.push_back(nr%2);
        nr/=2;
    }
    for(int i=M.size()-1;i>=0;i--)
        fo<<M[i];
}
int main()
{
    fi>>a>>b;
    lcm=(a*b)/gcd(a,b);
    dp[0]=0;
    dp[1]=1;
    nr=1;
    while(dp[nr]!=0)
    {
        nr++;
        dp[nr]=1;
        if(nr%2==1)
            dp[nr]=(dp[nr/2]*10+1)%lcm;
        else dp[nr]=(dp[nr/2]*10)%lcm;
    }
    afis(nr);
    fi.close();
    fo.close();
    return 0;
}