XX    XXX   XXXX    XXX    XXX    XXX    XXX    XXX    XXX    XXX    XXX    XXX    XXX    XXX    XXX    XXX    XXX   XXXXX
______XX____XXX___XXXX____XXX____XXX____XXX____XXX____XXX____XXX____XXX____XXX____XXX____XXX____XXX____XXX____XXX____XXX___XXXXX