Canonical Combining Class - CCC16

CCC16 is a specific value indicating that a character belongs to the class of "Attached Below Left" in the canonical ordering system used for text normalization. This class groups marks that sit closely beneath and to the left of their base character, such as certain diacritical signs in Indic scripts. When a character has CCC16, it affects how combining sequences are reordered during normalization, ensuring that marks with this attachment position are placed before others with different combining classes. The numeric value helps define a strict precedence order among diacritics, which is crucial for consistent rendering and string comparison across different platforms.