Notes on the submission

Your program should read from standard input and write data to standard output. For example, you can use scanf in C or cin in C++ to read, and use printf in C or cout in C++ to write. Your programs are not allowed to open and read from/write to any file.

Your program can not make new processes (e.g. using system(), fork(), thread etc.) and can not connect to outside and file system. The judge server and its operating system limit such procedures.

In addition, your program must not perform operations which do not use CPU resources (e.g. sleep(), pause(), waiting some events etc.).

Intentional use of the above mentioned restricted operations as well as any malevolent program will be considered as attacks on the judge systems. If we find the intentional attack, we may refuse submissions from the corresponding computers.

The JAVA program to be submitted must be in a single source code, Main.java (class name must be Main). They must read and write the standard input/output as the other languages.

java version "1.6.0"

If you have any question, please send us e-mails (uoaojs@gmail.com).