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           _    _     _____      ___       _____  
  ____    | || | ||  |__  //    / _ \\    / ___// 
 |    \\  | || | ||    / //    | / \ ||   \___ \\ 
 | [] ||  | \\_/ ||   / //__   | \_/ ||   /    // 
 |  __//   \____//   /_____||   \___//   /____//  
 |_|`-`     `---`    `-----`    `---`   `-----`   
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Text this: On the locating-chromatic number of some classes of graphs and graphs obtained from graph operations