#include <bits/stdc++.h>
#include <iostream>
using namespace std;
int main()
{
 int n,a,b;
 cin>>n>>a>>b;
 int re=0;
 for(int i=1;i<=n;i++)  //10  1 2
 {
     int w=i;
     int sum=0;
     while(w!=0)
     {
         sum+=w%10;
         w=w/10;
     }
     if(sum>=a&&sum<=b)
        re+=i;
 }
 cout<<re;
 
}