#include <bits/stdc++.h>
#include <fstream>
using namespace std;
ifstream fin ("multiplu.in");
ofstream fout ("multiplu.out");
int isbinary (unsigned long long m){
while (m>0){
    if ((m%10!=0)&&(m%10!=1))
        return 0;
    m/=10;}
return 1;
}
int main()
{
    int a, b, i;
    fin >> a >> b;
    int ca=a, cb=b;
    while (ca&&cb){
        if (ca>cb) ca-=cb;
        else cb-=ca;}
    int m=(a*b)/(cb+ca);
    for (i=1;i<=INT_MAX;++i)
        if (isbinary(i*m)) break;
    fout << i*m;
    return 0;
}