{"problem":{"name":"Sumo","description":{"content":"Takahashi is competing in a sumo tournament. The tournament lasts for $15$ days, during which he performs in one match per day. If he wins $8$ or more matches, he can also participate in the next tour","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"m_solutions2019_b"},"statements":[{"statement_type":"Markdown","content":"Takahashi is competing in a sumo tournament. The tournament lasts for $15$ days, during which he performs in one match per day. If he wins $8$ or more matches, he can also participate in the next tournament.\nThe matches for the first $k$ days have finished. You are given the results of Takahashi's matches as a string $S$ consisting of `o` and `x`. If the $i$\\-th character in $S$ is `o`, it means that Takahashi won the match on the $i$\\-th day; if that character is `x`, it means that Takahashi lost the match on the $i$\\-th day.\nPrint `YES` if there is a possibility that Takahashi can participate in the next tournament, and print `NO` if there is no such possibility.\n\n## Constraints\n\n*   $1 \\leq k \\leq 15$\n*   $S$ is a string of length $k$ consisting of `o` and `x`.\n\n## Input\n\nInput is given from Standard Input in the following format:\n\n$S$\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"m_solutions2019_b","tags":[],"sample_group":[["oxoxoxoxoxoxox","YES\n\nTakahashi has $7$ wins and $7$ losses before the last match. If he wins that match, he will have $8$ wins."],["xxxxxxxx","NO"]],"created_at":"2026-03-03 11:01:14"}}