X X                         X                           X                           X                           X                           X                           X                           X                        XXX X   XXXX  XXXXX  XXXX
X  XXX X  XXXXX  XXXXX  XXXXX  XXX X  XXXXX  XXXXX  XXXXX  XXX X  XXXXX
____X_X_________________________X___________________________X___________________________X___________________________X___________________________X___________________________X___________________________X________________________XXX_X___XXXX__XXXXX__XXXX__XXX_X__XXXXX__XXXXX__XXXXX__XXX_X__XXXXX__XXXXX__XXXXX__XXX_X__XXXXX