{"problem":{"name":"CODEFESTIVAL 2016","description":{"content":"This contest is `CODE FESTIVAL`. However, Mr. Takahashi always writes it `CODEFESTIVAL`, omitting the single space between `CODE` and `FESTIVAL`. So he has decided to make a program that puts the sing","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"codefestival_2016_qualA_a"},"statements":[{"statement_type":"Markdown","content":"This contest is `CODE FESTIVAL`. However, Mr. Takahashi always writes it `CODEFESTIVAL`, omitting the single space between `CODE` and `FESTIVAL`.\nSo he has decided to make a program that puts the single space he omitted.\nYou are given a string $s$ with $12$ letters. Output the string putting a single space between the first $4$ letters and last $8$ letters in the string $s$.\n\n## Constraints\n\n*   $s$ contains exactly $12$ letters.\n*   All letters in $s$ are uppercase English letters.\n\n## Input\n\nThe input is given from Standard Input in the following format:\n\n$s$\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"codefestival_2016_qualA_a","tags":[],"sample_group":[["CODEFESTIVAL","CODE FESTIVAL\n\nPutting a single space between the first $4$ letters and last $8$ letters in `CODEFESTIVAL` makes it `CODE FESTIVAL`."],["POSTGRADUATE","POST GRADUATE"],["ABCDEFGHIJKL","ABCD EFGHIJKL"]],"created_at":"2026-03-03 11:01:13"}}