#include <bits/stdc++.h>
using namespace std;
ifstream ci("multiplu.in");
ofstream cou("multiplu.out");
int a,b,c;
int sol[20];

int n=1;
int veri=0;
bool vericif(int a){
int veri=1;
while(a){
    if(a%10!=1&&a%10!=0){veri=0;}
    a/=10;
}
return veri;
}


void rez(){
int p,r=1;
while(1){
    p=c*r++;
    if( vericif(p) ){cou<<p;break;}
}


}
void cmmmc(){
int d,i,r;
d=a;
i=b;
r=a%b;
while(r!=0){
    d=i;
    i=r;
    r=d%i;
}
c=a*b/i;

}


int main()
{
    ci>>a>>b;
    cmmmc();
    rez();

    return 0;
}