{"problem":{"name":"E. Cheese Board","description":{"content":"_Not to be confused with [chessboard](https://en.wikipedia.org/wiki/Chessboard)._ ","description_type":"Markdown"},"platform":"Codeforces","limit":{"time_limit":1000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"CF952E"},"statements":[{"statement_type":"Markdown","content":"_Not to be confused with [chessboard](https://en.wikipedia.org/wiki/Chessboard)._\n\n\n\n## Input\n\nThe first line of input contains a single integer _N_ (1 ≤ _N_ ≤ 100) — the number of cheeses you have.\n\nThe next _N_ lines describe the cheeses you have. Each line contains two space-separated strings: the name of the cheese and its type. The name is a string of lowercase English letters between 1 and 10 characters long. The type is either \"_soft_\" or \"_hard_. All cheese names are distinct.\n\n## Output\n\nOutput a single number.\n\n[samples]","is_translate":false,"language":"English"},{"statement_type":"Markdown","content":"_不要与棋盘混淆。_\n\n输入的第一行包含一个整数 #cf_span[N] (#cf_span[1 ≤ N ≤ 100]) —— 你拥有的奶酪数量。\n\n接下来的 #cf_span[N] 行描述了你拥有的奶酪。每行包含两个用空格分隔的字符串：奶酪的名称及其类型。名称是由 1 到 10 个小写英文字母组成的字符串。类型为 \"_soft_\" 或 \"_hard_\"。所有奶酪名称互不相同。\n\n请输出一个数字。\n\n## Input\n\n输入的第一行包含一个整数 #cf_span[N] (#cf_span[1 ≤ N ≤ 100]) —— 你拥有的奶酪数量。接下来的 #cf_span[N] 行描述了你拥有的奶酪。每行包含两个用空格分隔的字符串：奶酪的名称及其类型。名称是由 1 到 10 个小写英文字母组成的字符串。类型为 \"_soft_\" 或 \"_hard_\"。所有奶酪名称互不相同。\n\n## Output\n\n请输出一个数字。\n\n[samples]","is_translate":true,"language":"Chinese"},{"statement_type":"Markdown","content":"**Definitions** \nLet $ N \\in \\mathbb{Z} $ be the number of cheeses, with $ 1 \\leq N \\leq 100 $. \nLet $ C = \\{ (name_i, type_i) \\mid i \\in \\{1, \\dots, N\\} \\} $ be the set of cheeses, where: \n- $ name_i \\in \\Sigma^{1..10} $, $ \\Sigma = \\{a, b, \\dots, z\\} $, \n- $ type_i \\in \\{ \\text{\"soft\"}, \\text{\"hard\"} \\} $, \n- All $ name_i $ are distinct.\n\n**Objective** \nCount the number of cheeses of type \"hard\". \n$$\n\\text{Output} = \\left| \\left\\{ i \\in \\{1, \\dots, N\\} \\mid type_i = \\text{\"hard\"} \\right\\} \\right|\n$$","is_translate":false,"language":"Formal"}],"meta":{"iden":"CF952E","tags":[],"sample_group":[["9\nbrie soft\ncamembert soft\nfeta soft\ngoat soft\nmuenster soft\nasiago hard\ncheddar hard\ngouda hard\nswiss hard","3"],["6\nparmesan hard\nemmental hard\nedam hard\ncolby hard\ngruyere hard\nasiago hard","4"]],"created_at":"2026-03-03 11:00:39"}}