Code point
U+333C
Glyph appearance depends on your fonts.
U+333C
So<square> 30D9 30FC 30BFU+333C SQUARE BEETA 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+333C
13116
㌼
㌼
E3 8C BC
333C
0000333C
%E3%8C%BC
\u333C
\u333C
\u333C
\333C