How and where do I report or adjust the box 2 amount on a 1099-R?

1099-R with box 1 & box 2a same amount - box 2b checked as not determined. Box 4 has tax withheld. 1099 represents 3 distinct transactions: (1) cash withdrawal- income tax withheld; (2) stock transferred from ira account to non ira account; (3) check issued for an indirect rollover.