import java.lang.*;
import java.util.*;

public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int a = sc.nextInt();
        int b = sc.nextInt();
        int result = 0;
        for(int i = 0;i<n;i++){
            int kari = i+1;
            int atai = 0;
            while(kari!=0){
                atai += (kari%10);
                kari = (int)(kari/10);
            }
            if(atai>=a&&atai<=b){
                result += i+1;
            }
        }
        System.out.println(result);
        sc.close();
    }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz