#include<fstream.h>
int x[20],i,j,ok,a,b;
unsigned long long int n;
int main(){
ifstream f("multiplu.in");
ofstream g("multiplu.out");
f>>a>>b;
ok=0;
x[1]=1;
x[0]=1;
while(!ok)
	{n=0;
	x[1]++;
	for(i=1;i<=x[0];i++)
	if(x[i]==2)
		{x[i]=0;
		x[i+1]++;
		if(x[x[0]+1]>0)
		x[0]++;}
	for(i=x[0];i>=1;i--)
		n=n*10+x[i];
	if((n%a==0)&&(n%b==0))
		ok=1;
	}
g<<n;
f.close();
g.close();
return 0;
}