#include<iostream.h>
#include<stdio.h>
int main ()
{long long a, b, m, d,cmmmc,cmmmc2,r,ca,cb; 
 freopen("multiplu", "rt", stdin);   
 freopen("multiplu.out", "wt", stdout);
cin>>a>>b;
ca=a; cb=b;
r=a%b;
while(r!=b)
{ r=a%b;
  a=b;
  b=r;
}
cmmmc=ca*cb/b;
cmmmc2=cmmmc;
for(d=1;;d++) {cmmmc2=d*cmmmc;
               while (cmmmc2){if (cmmmc2%10!=1 && cmmmc2%10!=0) break;
                              cmmmc2=cmmmc2/10;}
	       if(cmmmc2==0) break;}
m=cmmmc*d;
cout<<m;
return 0;}