Fourth And Thirty First

You fuse a dense retriever and a BM25 retriever with reciprocal rank fusion, using the constant the original paper fixed at $k = 60$:

$\text{RRF}(d) = \sum_{r \in R} \frac{1}{k + r(d)}$

Three documents come back:

doc	dense rank	BM25 rank
D	4	31
E	9	9
F	1	not in the BM25 list

What order does RRF put them in?