I discovered how to differentiate between D. S and D. C, boy I'm a slow learner.

D.S. or D.C. in music notation used as a navigation marker refer, respectively, to
dal segno (from Italian for “from the sign”)

 and da capo (meaning “from the  beginning,” literally, "from the head"). I understand English better lol. Also when I use a capo on the uke. I'm using it as the beginning of the fretboard.