#include<cstdio>
int main()
{
	freopen("multiplu.in","r",stdin);
	freopen("multiplu.out","w",stdout);
	int a,b;
	scanf("%d%d",&a,&b);
	int r=a%b,x=a,y=b;
	while (r)
	{
		x=y;
		y=r;
		r=x%y;
	}
	int cmmmc=a*b/y;
	int i=1;
	bool p=false;
	while (!p)
	{
		long long x=cmmmc*i,x1=x;
		while (x)
		{
			if (x%10!=1 && x%10!=0)
				break;
			x/=10;
		}
		i++;
		if (x==0)
		{
			printf("%lld",x1);
			p=true;
			return 0;
		}
	}
	return 0;
}