{"problem":{"name":"gacha","description":{"content":"You drew lottery $N$ times. In the $i$\\-th draw, you got an item of the kind represented by a string $S_i$. How many kinds of items did you get?","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"abc164_c"},"statements":[{"statement_type":"Markdown","content":"You drew lottery $N$ times. In the $i$\\-th draw, you got an item of the kind represented by a string $S_i$.\nHow many kinds of items did you get?\n\n## Constraints\n\n*   $1 \\leq N \\leq 2\\times 10^5$\n*   $S_i$ consists of lowercase English letters and has a length between $1$ and $10$ (inclusive).\n\n## Input\n\nInput is given from Standard Input in the following format:\n\n$N$\n$S_1$\n$:$\n$S_N$\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"abc164_c","tags":[],"sample_group":[["3\napple\norange\napple","2\n\nYou got two kinds of items: `apple` and `orange`."],["5\ngrape\ngrape\ngrape\ngrape\ngrape","1"],["4\naaaa\na\naaa\naa","4"]],"created_at":"2026-03-03 11:01:13"}}