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: Accepted)

function main(input) {
  input=input.trim();
  const n = parseInt(input.split(" ")[0], 10);
  const a = parseInt(input.split(" ")[1], 10);
  const b = parseInt(input.split(" ")[2], 10);

  var ans=[]
  for(var i=1; i<=n; i++){
    var nagasa=String(i).length
    var wa=0
    for(var j=0; j<nagasa; j++){
      wa+=Number(String(i).substr(j,1))
    }
    if(wa>=a&&wa<=b){
      ans.push(i)
    }
  }
  //console.log(ans);
  console.log(ans.reduce((x,y)=>x+y));
}



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