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 Scala (2.11.7) (judge verdict: Runtime Error)

object Main {
  def main(args: Array[String]) {
    val sc = new java.util.Scanner(System.in);
    val n = sc.nextInt();
    val min = sc.nextInt();
    val max = sc.nextInt();
    println((1 to n).filter(k => isBetween(k.toString.split("")
      .map(_.toInt).sum, min, max)).sum.toString);

    def isBetween(num: Int, min: Int, max: Int): Boolean = {
      min <= num && num <= max
    }
  }
}