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#include <stdio.h>
#include <time.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include <map> 
#include <string>
#include <vector>  
#include <iostream> 
#include <sstream> 
#include <queue>
#include <algorithm>
#include <assert.h>


using namespace std;

#define ll long long
#define PB 		push_back
#define FOR(a,start,end) 	for(int a=int(start); a<int(end); a++)
#define INF 		INT_MAX
#define SORT(a) 	sort(a.begin(),a.end()) 
#define CL(a,x) 		memset(a,x,sizeof(a))
#define REP(a,x)	for(int a=0;a<x;a++)
#define REP1(a,x)	for(int a=1;a<=x;a++)
#define MP 		make_pair



typedef vector<ll>     vi;
typedef pair<ll, ll>     pii;
typedef vector<string> vs;
typedef vector<pii> vii;
typedef vector<vector<ll> > vvi;
typedef vector<vector<string> > vvs;
typedef vector<pair<string, string> > vss;
typedef pair<string, string> pss;
typedef pair<ll, pii> ppii;
typedef vector<ppii> vppii;
typedef vector<vector<pii> > vvii;
typedef vector<vvi> vvvi;


ll n, k, a, b, t;
vi vk, va, vb;


bool czylp(ll a) {
	ll b = a;

	while (b > 0) {
		if (b % 10 == 0)
			return false;
		if (a % (b % 10) != 0)
			return false;
		b /= 10;
	}
	return true;

}
int main() {
	//freopen("c:\\wojtek\\uva\\pa\\debug\\t1.in", "rt", stdin);

	//pi=2*acos(0.0);
	
	//cin >> t;
	//for (int cas = 0; cas < t; cas++) {
		cin>>a>>b;
		ll k = 0;
		for (ll i = a; i <= b; i++) {
			if (czylp(i)) {
			//	cout << i << endl;
				k++;
			}
		}
		cout << k << endl;
	//}


	return 0;

}