#include <bits/stdc++.h>
using namespace std;
int f(int a) 
{  
    int sum=0;  
    while (a) 
	{  
        sum+=a%10;  
        a/=10;  
    }  
    return sum;  
}   
int main() 
{  
    int a,b;  
	cin>>a>>b;  
    int count=0;
    for (int i=a;i<=b;i++) 
	{
        if (i%f(i)==0) 
		{
            count++;  
        }  
    }  
	cout<<count;
  	return 0;  
}

40求解