/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
  public static void main (String[] args) throws java.lang.Exception
  {
    String str = "\\\\u003c";
    System.out.println(str);
    System.out.println(str.replaceAll("\\\\\\\\", "\\\\"));
    System.out.println(str.replace("\\\\", "\\"));
  }
}

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