Goes to the black magic supermarket purchase black
magic liquid medicines and the Buddhist musical istrument. Using
your hand in money, calculates the good pocket money and the entire
money. Side presses down the price which proposed to give the
just right amount as far as possible, if cannot also have to look for
the integer to the convenience only then to be able to score points.
Finally can judge your scoring points, looked you are a good
black magic merchant.