New Photos Show Latest As White House Rose Garden Is Bulldozed Paved Over 11758853

If new row values depend on previous row values as in the op, then depending on the number of columns, it might be better to loop over a pre-initialized dataframe of zeros or grow a python. I was searching on this link before finding this answer. I did not find the solution in the link because i was looking for newline or new line instead of line feed.