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   ノ二\  ナ ゝゝ   V                 ●●●   
     /   / 乙 つ  O               ●\   ●\  
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    ●\          \\\      ┣━┳┃┃      ┃          ││ ││
   ●●●\                      ┃   ┃┃┃ ┣┓ ━╋ ━╋  V   V
   \\\\                     ┛     ━┛ ┃   ┏┫ ┏┫  O  O