{"problem":{"name":"Security","description":{"content":"The door of Snuke's laboratory is locked with a security code. The security code is a $4$\\-digit number. We say the security code is _hard to enter_ when it contains two consecutive digits that are th","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"abc131_a"},"statements":[{"statement_type":"Markdown","content":"The door of Snuke's laboratory is locked with a security code.\nThe security code is a $4$\\-digit number. We say the security code is _hard to enter_ when it contains two consecutive digits that are the same.\nYou are given the current security code $S$. If $S$ is hard to enter, print `Bad`; otherwise, print `Good`.\n\n## Constraints\n\n*   $S$ is a $4$\\-character string consisting of digits.\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":"abc131_a","tags":[],"sample_group":[["3776","Bad\n\nThe second and third digits are the same, so $3776$ is hard to enter."],["8080","Good\n\nThere are no two consecutive digits that are the same, so $8080$ is not hard to enter."],["1333","Bad"],["0024","Bad"]],"created_at":"2026-03-03 11:01:13"}}