#include<iostream>

 #include<cstdio>

 #include<cstring>

 #define il inline

 #define Rg register

 #define go(i,a,b) for(i=a;i<=b;i++)

 #define yes(i,a,b) for(i=a;i>=b;i++)

 #define ll long long

 #define mem(a,b) memset(a,-1,sizeof(a));

 using namespace std;

 il ll read()

 {

     ll x=,y=;char c=getchar();

     while(c<''||c>''){if(c=='-')y=-;c=getchar();}

     while(c>=''&&c<=''){x=(x<<)+(x<<)+c-'';c=getchar();}

     return x*y;

 }

 int len,a[];

 ll l,r,mod,f[][][];

 il ll dfs(int pos,int sum,int ys,int limit)

 {

     if(pos>len)return (ys== && sum==mod);

     if(!limit && f[pos][sum][ys]!=-)return f[pos][sum][ys];

     ll as=;int maxs=limit?a[len-pos+]:,i;

     go(i,,maxs)as+=dfs(pos+,sum+i,(1LL*ys*+i)%mod,i==maxs&&limit);

     if(!limit)f[pos][sum][ys]=as;return as;

 }

 il ll sol(ll x)

 {

     len=;

     while(x)a[++len]=x%,x/=;

     ll as=;

     go(mod,,*len){mem(f,);as+=dfs(,,,);}

     return as;

 }

 int main()

 {

     l=read(),r=read();

     printf("%lld\n",sol(r)-sol(l-));

     return ;

 }