{"problem":{"name":"Tires","description":{"content":"You are given a string $S$ ending with `er` or `ist`.   If $S$ ends with `er`, print `er`; if it ends with `ist`, print `ist`.","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"abc224_a"},"statements":[{"statement_type":"Markdown","content":"You are given a string $S$ ending with `er` or `ist`.  \nIf $S$ ends with `er`, print `er`; if it ends with `ist`, print `ist`.\n\n## Constraints\n\n*   $2 \\le |S| \\le 20$\n*   $S$ consists of lowercase English letters.\n*   $S$ ends with `er` or `ist`.\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":"abc224_a","tags":[],"sample_group":[["atcoder","er\n\n$S=$\"`atcoder`\" ends with `er`."],["tourist","ist"],["er","er"]],"created_at":"2026-03-03 11:01:13"}}