#include<fstream>
using namespace std;
ifstream f("multiplu.in");
ofstream g("multiplu.out");
int nr,k,a,b,n,i,j,x[100];

void back()
{int i,p,ok;
ok=1;
	k=1;
x[k]=-1;
while(k&&ok)
{while(x[k]<1&&k<=n)
{x[k]++;
p=1;
for(i=1;i<=k;i++)
	p=p*10+x[i];
if(p%a==0&&p%b==0)
	{g<<p<<'\n';
    ok=0;
	}
	else
	{k++;
	x[k]=-1;
	}
}
k--;
}}
int main()
{f>>a>>b;
n=20;
back();
f.close();
g.close();
return 0;
}