Is there any hotkey to input A1 as $A$1 in Google spreadsheet?

For instance,

I have a finance sheet. And I would calculate the currency rate via this function:

GOOGLEFINANCE("AUDUSD")

Then, I put the result in A1.

And then, I need to convert some of my cells to the target currency by *$A1$1. After I ket the * key, I can use mouse to select the cell A1. And then, I have to enter the cell, putting my caret to the place and add two $ signs.

Inputing $ is really annoying. Is there any hotkey to do this?