Ahh...books

All form 4 students are required to return the school text books tomorrow. Just looking at the stacks of books can take your breath away. Lets assume it as 10 kg :D or more :D. Carry it up to the 2nd floor, ending up with a crooked backbone or muscled arms from extreme weight. Whoah! Got to be a tiring and breathless day up the stairs tomorrow. Long way to...class. Good night! :D