#include <cstdio>

using namespace std;
int N,M,D;

int cmmdc(int a,int b){
    if(b)
        return cmmdc(b, a%b);
    return a;
}

void Read()
{
    scanf("%d%d",&N,&M);
    D = N*M / cmmdc(N,M);
}

long long numar(int x)
{
    long long nou = 0;
    long long p = 1;
    while(x)
    {
        nou = nou + p* (x % 2);
        x/=2;
        p*=10;
    }
    return nou;
}

void Solve(int k)
{
    int lim = (1 << 20);
    for(int i = 1; i <= lim; ++i)
    {
        long long A = numar(i);
        if(A % D == 0)
        {
            printf("%lld\n",A);
            return;
        }
    }
}

int main()
{
    freopen("multiplu.in","r",stdin);
    freopen("multiplu.out","w",stdout);

    Read();
    Solve(1);

    return 0;
}