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#include <iostream>
using namespace std;
int main()
{
	ios_base::sync_with_stdio(0);
	unsigned long long a,b,c;
	long long wyn=0,cz;
	cin>>a>>b;
	for (unsigned long long i=a;i<=b;i++)
	{
		c=i;
		
		while(c!=0)
		{
			cz=true;
			if(c%10==0 || i%(c%10)!=0)
			{
				cz=false;
				break;
				
			}
			c=c-(c%10);
			c=c/10;
			
		}
		
		if (cz==true)
		wyn++;
	}
	cout<<wyn; 
}