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