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)

function main (input) {
    var N = parseInt(input.split(' ')[0],10);
    var A = parseInt(input.split(' ')[1],10);
    var B = parseInt(input.split(' ')[2],10);
    var ans =0;

    for (var n=0;n<=N;n++) {
      var sum =0;
        sum = findSumOfDigits(n);
        if (Math.floor(sum) >= A && Math.floor(sum) <= B) {
            ans = ans + n;
        }
    }

    function findSumOfDigits(n) {
        while (n >0) {
            sum = sum + n%10;
            n = n/10;
        }
        return sum;
    }
    console.log(ans);
}

main(require('fs').readFileSync('/dev/stdin', 'utf8'));