Yeah it's still the same but your solution is very wrong. I've traveled to brazil and risked my life to go to the jungle and i f**ked a bird, after that I came to my lab and subtracted amogus to see if there's a plural form of it. AND THEN Pablo knocked on my door and gave me 10, i did the amogus thing to several books and there was the 9 + 10 = 21.