Some Sums

AtCoder

IDabc083_b

Time2000ms

Memory256MB

Difficulty—

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: $N$ $A$ $B$ [samples]

Samples

Input #1

20 2 5

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, $84$.

Input #2

10 1 2

Output #2

Input #3

100 4 16

Output #3

API Response (JSON)

{
  "problem": {
    "name": "Some Sums",
    "description": {
      "content": "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).",
      "description_type": "Markdown"
    },
    "platform": "AtCoder",
    "limit": {
      "time_limit": 2000,
      "memory_limit": 262144
    },
    "difficulty": "None",
    "is_remote": true,
    "is_sync": true,
    "sync_url": null,
    "sign": "abc083_b"
  },
  "statements": [
    {
      "statement_type": "Markdown",
      "content": "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).\n\n## Constraints\n\n*   $1 \\leq N \\leq 10^4$\n*   $1 \\leq A \\leq ...",
      "is_translate": false,
      "language": "English"
    }
  ]
}

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