def format_seconds(time_seconds):
    """Formats some number of seconds into a string of format d days, x hours, y minutes, z seconds"""

    seconds = time_seconds
    hours = 0
    minutes = 0
    days = 0
    while seconds >= 60:
        if seconds >= 60 * 60 * 24:
            seconds -= 60 * 60 * 24
            days += 1
        elif seconds >= 60 * 60:
            seconds -= 60 * 60
            hours += 1
        elif seconds >= 60:
            seconds -= 60
            minutes += 1

    return f"{days}d {hours}h {minutes}m {seconds}s"