--------.sPYs.------------.ss -- ss.---------------------------
XXXXXXX Ybsssgggggg XXXXXXXXXX XX XXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXX bssss xx PY XX PYs.XXXXXXXXX
XXXXXXX gggggg XX gggggggggg XX xxx gggggg XX gggggggggg XggggX gggggg XXXXXXXX
XXXXXXX bssd XX bssd XX XXXXXXXX
XXXXXXX Pxxxxxx tMM XX xxxxxxxxxx XX XXXXXXXX
XXXXXXX PxXXXXXXXXXxYbssdPxXXXXXXXXXX XX XXXXXXXX XXXXXXX XXXXXXXXXXXXXxxxxxxxxxxxxxxXXXXXXXXXXXXXxxxxxxXXxxxxXXXY XXXXXXXX
------- : ---------------------------------------------------------Y -------- .