import java.util.Scanner;
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 ans = 0;
    for(int i=1; i<=n; i++) {
    	if(i<=9){
    	    if(a<=i && i<=b) {
    		    ans += i;
    	        }
    	}else if(i<=99) {
    		if(a <= i/10 + i%10 && i/10 + i%10 <= b) {
    			ans += i;   				
    			}
      	}else if(i<=999) {
      		if(a <= i/100 + (i%100)/10 + (i%10) && i/100 + (i%100)/10 + (i%10) <= b) {
      			ans += i;
      		}
        }else if(i<=9999) {
      		if (a <= i/1000 + (i%1000)/100 + ((i%1000)%100)/10 +(i%10) && i/1000 + (i%1000)/100 + ((i%1000)%100)/10 +(i%10)<= b) {
      			ans += i;
      		}
      	}else if(i== 10000){
    		if(a==1) {
    			ans += i;
    	}
    }
    }
        	System.out.println(ans);
      }
}
/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