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

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Text this: Connectedness of endo-cayley digraphs of right(left) zero union of semigroups