You should enter the boxes that you have on your 1099-R. Box 1 for box 1, box 2a for box 2a, and so on.
But are you asking this for something other than the 1099-R? Please gives us the context of your question. Are you in the federal return or in a state? What is the exact question?
Remember that we in the Community cannot see your private tax data, nor the screen you are on.
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