/* 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
{
	private static final String test = "This is a\ntest string\n\n\n";
    private static final String test2 = "This is a\ntest string\n\n\n ";
 
    public static void main(String[] args) {
        System.out.println("Line count: " + countLines(test));
        System.out.println("Line count: " + countLines(test2));
    }
 
    private static int countLines(String s) {
        return (s + " ").split("\r?\n").length;
    }
}

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