7430：A Broken Ancient Robot

Coda, Raki, Rex, and ACCrush are all members of ACM_TEAM. Today they are going to challenge the temple of MaBaoguo.

Around the temple, there are many broken ancient robots. Whatever you say, the ancient robot will answer "Error!".

Please imitate the ancient robot, no matter what the input is, the output is always "Error!".

One line, any input.

One line, output a string "$Error!$".

19软工A1 陈万鹏