//
//  main.cpp
//  pE E - Some Sums
//
//  Created by Hsiu-Fen Chou on 2019/12/20.
//  Copyright © 2019 Hsiu-Fen Chou. All rights reserved.
//

#include <iostream>
using namespace std;

int main() {
    int N, A, B;
    cin >> N >> A >> B;
    int ans = 0;
    for (int i=1; i<=N; i++){
    	// calculate sum of digits
    	int x = i;
	    int sum = 0;
	    while (x >= 10){
	        sum += x % 10;
	        x /= 10;
	    }
	    sum += x;
	    
        if (sum >= A && sum <= B){
            ans += i;
        }
    }
    cout << ans << '\n';
    return 0;
}
