Input: server.in
Output: server.out
Users of computers frequently enter URLs (Uniform Resource Locators) in the form
protocol://server.network
For example, in the URL
http://www.monkey.donkey.zebra.com
the protocol is "http", the server is "www", and the network is "monkey.donkey.zebra.com". For purposes of this problem, the protocol and server are alphanumeric strings, whereas the network is an alphanumeric string that may also contain periods (however, the URL cannot end with a period or contain two consecutive periods).
Each line of the input contains a URL in the format specified above. No line will be longer than 80 characters. The input is terminated by end-of-file.
Each line of input will give rise to one line of output, consisting of the word "server", followed by a colon and one blank space, and the server from the corresponding line of input.
http://www.monkey.donkey.zebra.com ftp://newton.cs.colorado.edu
server: www server: newton