Golden Coins

AtCoder

IDabc160_b

Time2000ms

Memory256MB

Difficulty—

Takahashi loves gold coins. He gains $1000$ _happiness points_ for each $500$\-yen coin he has and gains $5$ happiness points for each $5$\-yen coin he has. (Yen is the currency of Japan.) Takahashi has $X$ yen. If he exchanges his money so that he will gain the most happiness points, how many happiness points will he earn? (We assume that there are six kinds of coins available: $500$\-yen, $100$\-yen, $50$\-yen, $10$\-yen, $5$\-yen, and $1$\-yen coins.) ## Constraints * $0 \leq X \leq 10^9$ * $X$ is an integer. ## Input Input is given from Standard Input in the following format: $X$ [samples]

Samples

Input #1

Output #1

2020

By exchanging his money so that he gets two $500$\-yen coins and four $5$\-yen coins, he gains $2020$ happiness points, which is the maximum number of happiness points that can be earned.

Input #2

Output #2

0

He is penniless - or yenless.

Input #3

1000000000

Output #3

2000000000

He is a billionaire - in yen.

API Response (JSON)

{
  "problem": {
    "name": "Golden Coins",
    "description": {
      "content": "Takahashi loves gold coins. He gains $1000$ _happiness points_ for each $500$\\-yen coin he has and gains $5$ happiness points for each $5$\\-yen coin he has. (Yen is the currency of Japan.) Takahashi h",
      "description_type": "Markdown"
    },
    "platform": "AtCoder",
    "limit": {
      "time_limit": 2000,
      "memory_limit": 262144
    },
    "difficulty": "None",
    "is_remote": true,
    "is_sync": true,
    "sync_url": null,
    "sign": "abc160_b"
  },
  "statements": [
    {
      "statement_type": "Markdown",
      "content": "Takahashi loves gold coins. He gains $1000$ _happiness points_ for each $500$\\-yen coin he has and gains $5$ happiness points for each $5$\\-yen coin he has. (Yen is the currency of Japan.)\nTakahashi h...",
      "is_translate": false,
      "language": "English"
    }
  ]
}

Full JSON Raw Segments