#include<fstream>
#define DIM 2000005
using namespace std;
ifstream fin("multiplu.in");
ofstream fout("multiplu.out");
int M,a,b,r,m,x,y,i,n;
int v[DIM];
char f[DIM];
int main(){
    fin>>x>>y;
    a=x;
    b=y;
    r=0;
    while(b!=0){
        r=a%b;
        a=b;
        b=r;
    }
    M=(x*y)/a;
    v[1]=1;
    n=1;
    f[1]=1;
    i=1;
    while(v[i]%M!=0){
        x=v[i]*10;
        if(f[x%M]==0){
            v[++n]=x;
            f[x%M]=1;
        }
        x++;
        if(f[x%M]==0){
            v[++n]=x;
            f[x%M]=1;
        }
        i++;
    }
    fout<<v[i];
    return 0;
}