00:01
It's a three for one problem.
00:03
Gotta love those.
00:05
But they're each going to be pretty quick, so that's fine.
00:09
When i equals 1, 2, 3, whatever, 9 just still equals 9.
00:14
So for when i equals 1, when i equals 2, when i equals 3, when i equals 3, 9 still equals 9.
00:25
But it's hard to say 3 and write 9.
00:27
When i equals 4 and when i equals 5.
00:32
And notice that there's just 5 of them.
00:34
So 5 times 9 is 45.
00:41
So for this one, let's try and use that trick.
00:44
Since we're starting at 0, we're going to have 1 through 5 and also 0...