We had so much fun in school.

First time, I ever like going to school.

Sometimes, still, have to tolerant people like...

world record for the No1 champion-that is,

to scold vulgars in all his sentences.

if you wan to calculate, perhaps you can use differentiate.

F(knn^2 ccb^3) = d/dx (knn)^2(ccb)^3 + d/dx (ccb^3)(knn)^2

=2(knn)(ccb)^3 + 3(ccb)^2(knn)^2

thats the answer.

What i learnt from calculus to solve his problem

of scolding so much vulgars.

imagine in one sentence. before he ends and starts every sentence.

Im sure he's good in calculus if he do more practises like me.

and hello, its because i dont know what's alvin's full name.

and if he reads this, i would be expecting more

vulgars to come along.