Migrated from Lutece 327 BerOS file system

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Description

The new operating system BerOS has a nice feature. It is possible to use any number of characters / as a delimiter in path instead of one traditional /. For example, strings //usr///local//nginx/sbin// and /usr/local/nginx///sbin are equivalent. The character / (or some sequence of such characters) at the end of the path is required only in case of the path to the root directory, which can be represented as single character /.

A path called normalized if it contains the smallest possible number of characters /.

Your task is to transform a given path to the normalized form.

Input

There are multi-cases. The first line of each case contains only lowercase Latin letters and character / — the path to some directory. All paths start with at least one character /. The length of the given line is no more than $100$ characters, it is not empty.

Output

The path in normalized form.

Samples

//usr///local//nginx/sbin

/usr/local/nginx/sbin

Resources

2011寒假训练（一）(Not Original)