Super Mario All-Stars Lost Levels (3-4)

[OomPapaMowMow]

I am stuck in world 3-4 in the Super Mario All-Stars "Lost Levels". And yes, I know this very website has a path, but I'm still at a loss. I have attached a crude partial map of the level. Point (A) is a jump that I cannot make without bumping my head; and once I fall down I can't get back up to the top.

[yoshimastar]

A row of invisible ? blocks makes a platform to reach the top path. Jump around the area where you bump your head.