please answer me what is input and output file's name

It's very easy,If you want to know,please call me ,my telephone no is TEL:13801880391(北京)
and my QQ no is 645996795 Do you use QQ ? and do you know QQ in china lots of people use it .

Edited by author 22.05.2011 15:43

Edited by author 22.05.2011 15:43

console (do not use files, read from keyboard and write into terminal)