X                           X                           X                           X                           X                           X                           X
XXXXX  XXXXX  XXXXX  XXX X  XXXXX  XXXXX  XXXXX  XXX X  XXXXX  XXXXX  XXXXX  XXX X  XXXXX  XXXXX  XXXXX
____X___________________________X___________________________X___________________________X___________________________X___________________________X___________________________X__________XXXXX__XXXXX__XXXXX__XXX_X__XXXXX__XXXXX__XXXXX__XXX_X__XXXXX__XXXXX__XXXXX__XXX_X__XXXXX__XXXXX__XXXXX