{"problem":{"name":"Three-letter acronym","description":{"content":"You are given three words $s_1$, $s_2$ and $s_3$, each composed of lowercase English letters, with spaces in between. Print the acronym formed from the uppercased initial letters of the words.","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"abc059_a"},"statements":[{"statement_type":"Markdown","content":"You are given three words $s_1$, $s_2$ and $s_3$, each composed of lowercase English letters, with spaces in between. Print the acronym formed from the uppercased initial letters of the words.\n\n## Constraints\n\n*   $s_1$, $s_2$ and $s_3$ are composed of lowercase English letters.\n*   $1 ≤ |s_i| ≤ 10 (1≤i≤3)$\n\n## Input\n\nInput is given from Standard Input in the following format:\n\n$s_1$ $s_2$ $s_3$\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"abc059_a","tags":[],"sample_group":[["atcoder beginner contest","ABC\n\nThe initial letters of `atcoder`, `beginner` and `contest` are `a`, `b` and `c`. Uppercase and concatenate them to obtain `ABC`."],["resident register number","RRN"],["k nearest neighbor","KNN"],["async layered coding","ALC"]],"created_at":"2026-03-03 11:01:14"}}