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 PHP (5.6.30) (judge verdict: Accepted)

<?php

$input = explode(" ",trim(fgets(STDIN)));
$roop = $input[0];
$min = $input[1];
$max = $input[2];
for($i=1; $i<=$roop;$i++){
     $d = str_split($i);
     $d = array_sum($d);
    if($min <= $d && $d <= $max){
        $total[] = $i;
    }
}
echo array_sum($total);