Question: manipulation of vector strings

I have a column vector that looks like this:

"GOOG.NASDAQ_GOOG"
"GOOG.NASDAQ_AAPL"
"GOOG.NASDAQ_ZN"
"GOOG.NASDAQ_ZOOM"
....

However, I need it to be in this format:

GOOG.NASDAQ_GOOG.4,GOOG.NASDAQ_AAPL.4,GOOG.NASDAQ_ZN.4,GOOG.NASDAQ_ZOOM.4 etc

It appears to be very simple but I cant figure out how to do it in Maple.

LL_101)_Quandl_Get_D.mw

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