#include<cstdio>
struct queue
{
	int c;
	int r;
	int t;
};
queue q[10000];
int v[10000];




int main()
{
	freopen("multiplu.in","r",stdin);
	freopen("multiplu.out","w",stdout);
	int n,a,b,i=1,j,k;
	scanf("%d%d",&a,&b);
	n=a*b;
	q[1].c=1;
	q[1].r=1;
	q[1].t=0;
	j=1;
	while(1)
	{
		q[++i].c=0;
		q[i].t=j;
		q[i].r=(q[q[i].t].r*10+q[i].c)%n;
		if(q[i].r==0)
			break;
		q[++i].c=1; 
		q[i].t=j;
		q[i].r=(q[q[i].t].r*10+q[i].c)%n;
		if(q[i].r==0)
			break;
		++j;
	}
	k=i;
	for(j=1;;++j)
	{
		v[j]=q[k].c;
		k=q[k].t;
		if(k==0)
			break;
	}
	for(i=1;i<=j;++i)
		printf("%d",v[i]);
	return 0;
}