Increment Versioned File Path

You are given a file system path as a string. The path may optionally end with a version number of the form _v<n>, where n is a positive integer. Your task is to read a file path from stdin and output the file path with an incremented version number.

If the path ends with a version number, defined by the regular expression \(\_v\d+\), then its numeric part should be incremented by \(1\). Otherwise, append _v1 to the end of the string.

For example:

• If the input is /user/documents/file, then the output should be /user/documents/file_v1.
• If the input is /user/music/song_v10, then the output should be /user/music/song_v11.

inputFormat

The input consists of a single line containing a string that represents the file path. The string is read from stdin.

outputFormat

Output the modified file path to stdout after applying the version number incrementing rule.

/user/documents/file

/user/documents/file_v1