#include<fstream.h>
int i,j,a,b,p,q;
unsigned long long long int x[5000000];
ifstream f("multiplu.in");
ofstream g("multiplu.out");
int main(){
f>>a>>b;
f.close();
p=q=1;x[1]=1;
while(1)
	{x[q+1]=x[p]*10;
        q++;
	if((x[q]%a==0)&&(x[q]%b==0))
		{g<<x[q];
		g.close();
		return 0;
		}
	x[q+1]=x[p]*10+1;
        q++;
	if((x[q]%a==0)&&(x[q]%b==0))
		{g<<x[q];
		g.close();
		return 0;
		}
	p++;
	}
}