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 Python (3.4.3) (judge verdict: Accepted)

n,a,b= input().split()
N = int(n)
A = int(a)
B = int(b)

ab_list = []
for i in range(1,N+1):
	numbers = list(str(i))
	num_list = list(map(int,numbers))

	sum_numlist = 0
	for j in range(len(num_list)):
		sum_numlist += num_list[j]

	if(A<=sum_numlist and sum_numlist<=B):
		ab_list.append(i)

count = 0
for n in range(len(ab_list)):
	count += ab_list[n]

print(count)