Collect Puzzle DX

A very simple puzzle to align 3 objects of the same kind!

Place an object in 7 frames, and when 3 of the same type are aligned in order, the object will disappear.
Clear the level by erasing all the objects.
The game is over when the seven frames are filled with objects.
The order in which to put them in the frame and where to eliminate the overlap is where to use your brain.