#include <bits/stdc++.h>
using namespace std;
ifstream in("multiplu.in");
ofstream out("multiplu.out");
const int lim=2e6+13;
const int lim2=3.5e6+13;
bool dp[lim];
int last[lim];
int p[lim2];
int a,b,c;
int main()
{
    vector<int> atinse,urm;
    ios_base::sync_with_stdio(false);
    in.tie(0),out.tie(0);
    in>>a>>b;
    c=(a*b)/__gcd(a,b);
    int e2=0,e5=0;
    int cc=c;
    while(cc%2==0)
        ++e2,cc/=2;
    while(cc%5==0)
        ++e5,cc/=5;
    if(cc==1)
        out<<1;
    else
    {
        p[0]=1;
        dp[1]=true;
        last[1]=0;
        atinse.clear();
        atinse.push_back(1);
        bool stop=false;
        for(int i=1;;++i)
        {
            urm.clear();
            p[i]=(p[i-1]*10)%cc;
            for(int x:atinse)
            if((x+p[i])%cc==0)
            {
                dp[0]=true;
                last[0]=i;
                stop=true;
                break;
            }
            else
            {
                int y=(x+p[i])%cc;
                if(dp[y]==false)
                {
                    urm.push_back(y);
                    dp[y]=true;
                    last[y]=i;
                }
            }
            for(int x:urm)
                atinse.push_back(x);
            if(stop)
                break;
        }
        for(int i=last[0],r=0,j=last[0];j>=0;--j)
        {
            if(i==j)
            {
                out<<1;
                r=(r-p[i]+cc)%cc;
                i=last[r];
            }
            else out<<0;
        }
    }
    for(int i=1;i<=max(e2,e5);++i)
        out<<'0';
    out<<'\n';
    return 0;
}