import java.util.*;
import java.util.regex.*;
 
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String s = "I|123|\"hi\"\nU|321|\"ola\"\nD|098|\"welcome \n to the hotel \n california\"\nI|234|\"ya!\"";
		Pattern p = Pattern.compile("\"[^\"]*\"");
		StringBuffer result = new StringBuffer();
		Matcher m = p.matcher(s);
		while (m.find()) {
    		m.appendReplacement(result, m.group().replaceAll("\n+", " "));
		}
		m.appendTail(result);
		System.out.println(result.toString());
 
	}
}

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