Absolutely Useless Post...

But it is Friday...

There are 7 girls in a bus.
Each girl has 7 backpacks.
In each backpack, there are 7 big cats.
For every big cat, there are 7 little cats.
Question: How many legs are there in the bus?

Don't even try to figure it out if you are on medication for nervousness or high blood pressure. Please consult your physician before attempting to solve.