{"problem":{"name":"Abbreviate Fox","description":{"content":"Given is a string $S$ of length $N$ consisting of lowercase English letters. Snuke can do this operation any number of times: remove `fox` occurring as a substring from $s$ and concatenate the remaini","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"arc108_b"},"statements":[{"statement_type":"Markdown","content":"Given is a string $S$ of length $N$ consisting of lowercase English letters. Snuke can do this operation any number of times: remove `fox` occurring as a substring from $s$ and concatenate the remaining parts of $s$.\nWhat is the minimum possible length of $s$ after some number of operations by Snuke?\n\n## Constraints\n\n*   $1 \\leq N \\leq 2 \\times 10^{5}$\n*   $s$ is a string of length $N$ consisting of lowercase English letters.\n\n## Input\n\nInput is given from Standard Input in the following format:\n\n$N$\n$s$\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"arc108_b","tags":[],"sample_group":[["6\nicefox","3\n\n*   By removing the `fox` at the end of `icefox`, we can turn $s$ into `ice`."],["7\nfirebox","7\n\n*   `fox` does not occur as a substring."],["48\nffoxoxuvgjyzmehmopfohrupffoxoxfofofoxffoxoxejffo","27"]],"created_at":"2026-03-03 11:01:13"}}