def METHOD_NAME(fs, paths):
    if fs.pathsep == "/":
        return "/".join(paths)
    new_paths = []
    for i, path in enumerate(paths):
        path = FSMap._normalize_path(
            fs, path, lstrip=i > 0, rstrip=i < len(paths) - 1
        )
        new_paths.append(path)
    return fs.pathsep.join(new_paths)