{"problem":{"name":"Restaurant","description":{"content":"Snuke has a favorite restaurant. The price of any meal served at the restaurant is $800$ yen (the currency of Japan), and each time a customer orders $15$ meals, the restaurant pays $200$ yen back to ","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"abc055_a"},"statements":[{"statement_type":"Markdown","content":"Snuke has a favorite restaurant.\nThe price of any meal served at the restaurant is $800$ yen (the currency of Japan), and each time a customer orders $15$ meals, the restaurant pays $200$ yen back to the customer.\nSo far, Snuke has ordered $N$ meals at the restaurant. Let the amount of money Snuke has paid to the restaurant be $x$ yen, and let the amount of money the restaurant has paid back to Snuke be $y$ yen. Find $x-y$.\n\n## Constraints\n\n*   $1 ≤ N ≤ 100$\n\n## Input\n\nThe input is given from Standard Input in the following format:\n\n$N$\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"abc055_a","tags":[],"sample_group":[["20","15800\n\nSo far, Snuke has paid $16000$ yen, and the restaurant has paid back $200$ yen. Thus, the answer is $15800$."],["60","47200\n\nSnuke has paid $48000$ yen for $60$ meals, and the restaurant has paid back $800$ yen."]],"created_at":"2026-03-03 11:01:14"}}