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#include <stdio.h>
#include <strings.h>
#include <iostream>
#include <string>
#include <vector>

using namespace std;

typedef unsigned long long ullong;


bool is(ullong v) {
    ullong x = v;
      
    do {
        ullong digit = x % 10;
        if (v%digit!=0) return false;
        x = x / 10;
    } while (x>1);

    return true;
}


int main() {
    ullong l, r;
    cin>>l>>r;

    ullong count = 0;
    vector<ullong> nums = {0};
    for(int len=0; len<=18; ++len) {
        vector<ullong> new_nums;
 
       for (ullong v: nums) {
            for (int d=1; d<=9; ++d) {
                ullong totest = v*10+d;
                if (is(totest)) {
                    //cout<<totest<<endl;  
                    new_nums.push_back(totest);
                    if (totest>=l && totest<=r) count++;          
                }
            }
        }

        nums.clear();
        nums.insert(nums.end(), new_nums.begin(), new_nums.end());
        new_nums.clear();

    } 

    cout<<count<<endl;
}