Code point
U+3373
Glyph appearance depends on your fonts.
U+3373
So<square> 0041 0055U+3373 SQUARE AU is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the CJK Compatibility block.
Choose the representation you need, then copy its value.
U+3373
13171
㍳
㍳
E3 8D B3
3373
00003373
%E3%8D%B3
\u3373
\u3373
\u3373
\3373