{"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 has $X$ yen. If he exchanges his money so that he will gain the most happiness points, how many happiness points will he earn?\n(We assume that there are six kinds of coins available: $500$\\-yen, $100$\\-yen, $50$\\-yen, $10$\\-yen, $5$\\-yen, and $1$\\-yen coins.)\n\n## Constraints\n\n*   $0 \\leq X \\leq 10^9$\n*   $X$ is an integer.\n\n## Input\n\nInput is given from Standard Input in the following format:\n\n$X$\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"abc160_b","tags":[],"sample_group":[["1024","2020\n\nBy 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."],["0","0\n\nHe is penniless - or yenless."],["1000000000","2000000000\n\nHe is a billionaire - in yen."]],"created_at":"2026-03-03 11:01:14"}}