/* 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 = "меняем LVARCHAR(21), LVARCHAR(1234)";
		String result = s.replaceAll("\\bLVARCHAR\\((\\d+)\\)", "VARCHAR($1)");
		System.out.println(result);
 
	}
}

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