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 PyPy3 (2.4.0) (judge verdict: Wrong Answer)

N, a, b = map(int, input().split())
i = 0
for n in range(0, N+1):
    n1 = n % 10
    n10 = (n % 100 - n1) / 10
    n100 = (n % 1000 - (n % 100 - n1) - n1) / 100
    n1000 = int(n / 1000)
    if a <= n1+n10+n100+n1000 <= b:
        i += n
print(i)