#include <iostream>
#include <cmath>
#include <fstream>
 using namespace std;
 ifstream f("multiplu.in");
 ofstream g("multiplu.out");
//struct nod{int info;nod *urm;}*vf=NULL;
//nod *p=NULL;
//void intro(int info){
//p=new nod;
//p->info=info;
//p->urm=vf;
//vf=p;
//}
//void traversare(){
//p=vf;
//while(p!=NULL){
//    cout<<p->info<<" ";
//    p=p->urm;}
//}
//void pop(){
//    if(vf==NULL);
//    else{
//p=vf;
//vf=vf->urm;
//delete p;
//    }
//}
 int main ()
 {
     bool h=true;
int n,m=1,a,b,c1=1,c2=1,r1,r2,t1=0,t2=0;
f>>a>>b;
while(h){
c1=m*10;
c2=m*10+1;
r1=0;r2=0;

    r1=c1%a;
    r2=c1%b;
    t1=r1+r2;

 r1=0;r2=0;

    r1=c2%a;
    r2=c2%b;
    t2=r1+r2;

 if(t1>t2) m=c2;
 if(t1<t2) m=c1;
 if(m%a==0 && m%b==0) h=false;

}

g<<m;

 }