{"problem":{"name":"Nickname","description":{"content":"When you asked some guy in your class his name, he called himself $S$, where $S$ is a string of length between $3$ and $20$ (inclusive) consisting of lowercase English letters. You have decided to cho","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"tokiomarine2020_a"},"statements":[{"statement_type":"Markdown","content":"When you asked some guy in your class his name, he called himself $S$, where $S$ is a string of length between $3$ and $20$ (inclusive) consisting of lowercase English letters. You have decided to choose some three consecutive characters from $S$ and make it his nickname. Print a string that is a valid nickname for him.\n\n## Constraints\n\n*   $3 \\leq |S| \\leq 20$\n*   $S$ consists of lowercase English letters.\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":"tokiomarine2020_a","tags":[],"sample_group":[["takahashi","tak"],["naohiro","nao"]],"created_at":"2026-03-03 11:01:13"}}