#include <cstdio>
#include <queue>
using namespace std;
queue <int> q;
int cmmdc(int a,int b)
{
  int r;
  while(b)
  {
    r=a%b;
    a=b;
    b=r;
  }
  return a;
}
int cmmmc(int a,int b)
{
  int prod=a*b;
  int M=cmmdc(a,b);
  return prod/M;
}
int lee(int m)
{
  int nr=1;
  q.push(nr);
  while(!q.empty())
  {
    nr=q.front();
    int nr2=nr*10+1,nr1=nr*10;
    if(nr1%m==0)
      return nr1;
    if(nr2%m==0)
      return nr2;
    q.push(nr1);
    q.push(nr2);
    q.pop();
  }
}

int main()
{
    int a,b;
    freopen("multiplu.in","r",stdin);
    freopen("multiplu.out","w",stdout);
    scanf("%d%d",&a,&b);
    int m=cmmmc(a,b);
    printf("%d",lee(m));
    return 0;
}