"謎底"是多少劃?

19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!19畫!!!!!!