Problem:
Score : 200 points

Problem Statement

Find the sum of the integers between 1 and N (inclusive), whose sum of digits written in base 10 is between A and B (inclusive).

Constraints

1 \leq N \leq 10^4

1 \leq A \leq B \leq 36

All input values are integers.

Input

Input is given from Standard Input in the following format:

N A B

Output

Print the sum of the integers between 1 and N (inclusive), whose sum of digits written in base 10 is between A and B (inclusive).

Sample Input 1

20 2 5

Sample Output 1

84

Among the integers not greater than 20, the ones whose sums of digits are between 2 and 5, are: 2,3,4,5,11,12,13,14 and 20. We should print the sum of these, 84.

Sample Input 2

10 1 2

Sample Output 2

13

Sample Input 3

100 4 16

Sample Output 3

4554

Solution in JavaScript (node.js v5.12) (judge verdict: Wrong Answer)

"use strict";

/**
 * @see https://practice.contest.atcoder.jp/tasks/practice_1
 * @param  {string} input
 * @returns {string}
 */
var main = function(input) {
    const digits = (n) => {
        return n.toString()
            .split("")
            .reduce((a, b) => a + b);
    }

    const params = input.split(" ").map(x => parseInt(x));
    const N = params[0];
    const A = params[1];
    const B = params[2];

    return [...Array(N).keys()]
        .map(x => x + 1)
        .filter(x => {
            const d = digits(x);
            return d >= A && d <= B;
        }).reduce((a, b) => a + b, 0);
};

const output = main(require("fs").readFileSync("/dev/stdin", "utf8"));
console.log(output); // console.log outputs with trailing new line!