Identify any text or symbols that are not clearly decipherable or could be ambiguous.

There are a few potentially ambiguous elements: 'Fl' could be a chemical symbol (Flerovium) or part of a word/equation. The symbols 'c 178' and 'c 182' might refer to constants, conditions, or specific data points within the problem. The character 'y' before 'изотопа' could be part of a word or a variable.