/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.*;
/* 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 s="and this)";
		String ps = "(?<!\\w)"+Pattern.quote(s)+"(?!\\w)";
		//String pp = Pattern.quote(pat);
		Pattern p=Pattern.compile(ps);
		Matcher mm = p.matcher("oh and this) is");
 
		System.out.println(mm.find()); 
	}
}

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