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 _    _      ___      _____      ___     _____    
| \  / ||   / _ \\   / ____||   / _ \\  |  __ \\  
|  \/  ||  | / \ || / //---`'  | / \ || | |  \ || 
| .  . ||  | \_/ || \ \\___    | \_/ || | |__/ || 
|_|\/|_||   \___//   \_____||   \___//  |_____//  
`-`  `-`    `---`     `----`    `---`    -----`

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Text this: Wave interaction with one or two rows of closely spaced rectangular cylinders