Daysheet letters

What do the letters on the daysheets mean?

Titles (left of their rating)

c - Candidate Master
f - FIDE Master
i - International Master

Everything else (right of their rating)

c - Converted rating (e.g. from chess.com etc.)
e - Estimated grade (e.g. from chess.com, or because they've not played enough matches)
u - Unrated (estimate rating)
* -- Wildcard player