#include<iostream>
using namespace std;
int main ()
{
 long long a,b,c,d,n,m,br=0;
 cin>>n>>m;
 b=a/1000;
 c=a%1000;
 d=c+d;
 while (n<=a<=m)
 {
 	if (a%d==0) br++;
 }
 cout<<br<<endl;
 return 0;
}
