X      X    X X           X      X      X                     XX                                                                                                                     XX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXX
X   XXXX
_____X______X____X_X___________X______X______X_____________________XX_____________________________________________________________________________________________________________________XX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXX___XXXX