|   |   |   |   |   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---@---+---+---@   |   
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|   |   X---@---+---+---@   |   
|   X---@---+---+---@   |   |   
|   |   X---@---+---+---@   |   
|   |   |   X---+---+---+---@   
|   |   X---@---+---+---@   |   
X---+---+---+---@---+---+---@   
|   |   |   @---+---+---@---X   
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|   @---+---+---+---X   |   |   
|   |   @---+---+---@---X   |   
|   |   |   @---+---+---@---X   
X---+---+---+---@---+---+---@   
|   |   |   @---+---+---@---X   
|   |   @---+---+---@---X   |   
|   @---+---+---+---X   |   |   
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|   |   |   |   X   |   |   |   
|   |   |   X   |   |   |   |   
|   |   X   |   |   |   |   |   
