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 Pascal (FPC 2.6.2) (judge verdict: Runtime Error)

var x:array[1..100]of 0..1;
    n,m,i,j:longint;
 begin
  readln(n);
  for i:=1 to n do 
  begin
   readln(m);
   for j:=0 to m div 7 do
    if(m-7*j)mod 3=0 then 
     x[i]:=1;
  end;
  for i:=1 to n do 
   if x[i]=1 
    then writeln('YES')
    else writeln('NO');
 end.