Code point
U+FF3C
Glyph appearance depends on your fonts.
U+FF3C
Po<wide> 005CU+FF3C FULLWIDTH REVERSE SOLIDUS is a Unicode 16.0.0 character in the Other Punctuation category. It belongs to the Halfwidth and Fullwidth Forms block.
Choose the representation you need, then copy its value.
U+FF3C
65340
\
\
EF BC BC
FF3C
0000FF3C
%EF%BC%BC
\uFF3C
\uFF3C
\uFF3C
\FF3C