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  _  _      ___      ______     ___     __   __  
 | \| ||   / _ \\   /_   _//   / _ \\   \ \\/ // 
 |  ' ||  | / \ ||  `-| |,-   / //\ \\   \   //  
 | .  ||  | \_/ ||    | ||   |  ___  ||  / . \\  
 |_|\_||   \___//     |_||   |_||  |_|| /_//\_\\ 
 `-` -`    `---`      `-`'   `-`   `-`  `-`  --`

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Text this: A note on the monotonicity of the ES algorithm