{"raw_statement":[{"iden":"problem statement","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`."},{"iden":"constraints","content":"*   $S$ is a $4$\\-character string consisting of digits."},{"iden":"input","content":"Input is given from Standard Input in the following format:\n\n$S$"},{"iden":"sample input 1","content":"3776"},{"iden":"sample output 1","content":"Bad\n\nThe second and third digits are the same, so $3776$ is hard to enter."},{"iden":"sample input 2","content":"8080"},{"iden":"sample output 2","content":"Good\n\nThere are no two consecutive digits that are the same, so $8080$ is not hard to enter."},{"iden":"sample input 3","content":"1333"},{"iden":"sample output 3","content":"Bad"},{"iden":"sample input 4","content":"0024"},{"iden":"sample output 4","content":"Bad"}],"translated_statement":null,"sample_group":[],"show_order":["default"],"formal_statement":null,"simple_statement":null,"has_page_source":true}