Nadia mouthed an 'oh'. Now it was clear where exactly the thought was flawed. She hadn't considered, well, it was an understatement, about cero. Then again, it made one wonder if all numbers could be represented as the sum of two primes, because, how did it apply to the cero(0) and one(1) numbers? Arg, mathematics hadn't been her strenght at Muggle school...

OK, maybe she needed to review some of her notes before making any more questions and make a fool of herself.

Instead, Nadia turned her attention to the matter at hand, to the strings and sticks, first staring as if it was some sort of puzzle before she put herself to work it out. Now how would they tie the sticks together? One over the other? Because sure as heck it would shift. All together then? But then what did he mean by shifting. Sighing and still not sure if she had taken the intructions correctly, she grabbed a handful of the sticks and placed them 'standing' on the table with one hand, rounding them up with a string with the other. It was only 5 sticks now and it was... holding it pretty fine it seemed. Then she tried with 7 and it would still stand on its own. Now with a number over seven...