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 X