In phantom hour glass, I'm stuck! I can't put the crystal in the right order in the pedastals.?

Yup, this is a games question. Sorry guys. Legend of Zelda, the Phantom Hour Glass.
I’m in Temple of the Ocean King, I have my graple hook and have to put the crystals in the order of square, circle and triangle. but the pedastals are circle, square and triangle.
How can I put them in that order?
I can’t get on with the game until I figure this out and no matter how I try, the square won’t fit in the circle pedastal.

please help