X X X  X X X  X X X  X                                                                                   X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X
X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X
X X X  X X X  X X X  X                                                                                   X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X XX X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X  X X X