Simplify Unix Path

Given an absolute Unix-style file path, simplify it to its canonical form.

The canonical path should adhere to the following rules:

• The path starts with a single slash '/'.
• Any two directories are separated by a single slash '/'.
• The path does not end with a trailing '/' (unless it is the root directory '/').
• The special directory "." means the current directory, so it can be ignored.
• The special directory ".." moves up one directory if possible.
• Multiple consecutive slashes are treated as a single slash.

For example, the canonical form of "/a//b////c/d//././/.." is "/a/b/c".

inputFormat

The input consists of a single line, which is a non-empty string representing an absolute Unix-style file path. The path starts with a '/' and may contain letters, digits, '.', '..', and additional '/' characters.

outputFormat

Output the canonical simplified path as a single line on standard output.

/home/

/home