import java.util.*;
import java.util.regex.*;
 
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String s = "variant \"if and only if 5 divides by i without remainder, then it prints \\\"i + \\\" variant: \\\" + variant\\\"\" variant";
		System.out.println(s);
 
		Pattern pattern = Pattern.compile("(?s)(?<!\\\\)(?:\\\\{2})*\"[^\"\\\\]*(?:\\\\.[^\"\\\\]*)*\"");
		Matcher matcher = pattern.matcher(s);
		int count = 0;
		while (matcher.find()){
			count += matcher.group().split("variant", -1).length-1;
		}
		System.out.println(count);
	}
}

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