Yo`nalishlar
Hozirda online

Statistika

Masalalar soni: 909

Foydalanuvchilar soni: 8819

Jo'natishlar soni: 714352

Muhokama yozuvlari: 4541

Yangiliklar soni: 97

Yangiliklar izohlari: 1174


So'ngi izohlar

744. Java vs C++
Vaqt limiti: 1 sekund
Xotira limiti: 64 MB

Apologists of Java and C++ can argue for hours proving each other that their programming language is the best one. Java people will tell that their programs are clearer and less prone to errors, while C++ people will laugh at their inability to instantiate an array of generics or tell them that their programs are slow and have long source code.

   Another issue that Java and C++ people could never agree on is identifier naming. In Java a multiword identifier is constructed in the following manner: the first word is written starting from the small letter, and the following ones are written starting from the capital letter, no separators are used. All other letters are small. Examples of a Java identifier are javaIdentifierlongAndMnemonicIdentifiername,nEERC.

   Unlike them, C++ people use only small letters in their identifiers. To separate words they use underscore character _. Examples of C++ identifiers are java_identifier,long_and_mnemonic_identifiername (you see that when there is just one word Java and C++ people agree), n_e_e_r_c.   You are writing a translator that is intended to translate C++ programs to Java and vice versa. Of course, identifiers in the translated program must be formatted due to its language rules otherwise people will never like your translator.

   The first thing you would like to write is an identifier translation routine. Given an identifier, it would detect whether it is Java identifier or C++ identifier and translate it to another dialect. If it is neither, then your routine should report an error. Translation must preserve the order of words and must only change the case of letters and/or add/remove underscores.

Input

There is one line that contains an identifier. It consists of letters of the English alphabet and underscores. Its length does not exceed 100.

Output

   If the input identifier is Java identifier, output its C++ version. If it is C++ identifier, output its Java version. If it is none, output "Error!" instead.

Samples

Input

Output

1

long_and_mnemonic_identifier

longAndMnemonicIdentifier

2

anotherExample

another_example

3

i

i

4

bad_Style

Error!

 

Tayyorladi: Azat Yusupov
Text from: Uzbekistan subegional
Mening urinishlarim(0) Muhokama (0) Jo'natish Eng yaxshi yechimlar Barcha muvaffaqiyatli urinishlar(25) Barcha urinishlar(154)