First, we need to make sure that the console you are working with supports such characters. Here we have a question on this subject (specifically about the Windows; as far as I know, in UNIX a simple UTF-8).
How do I output the sign Σ(Sigma) in C++(console application)?
To display this symbol have...
• or use a "wide" version of the function (wprintf, wcout, etc.).
• or display this symbol in UTF-8.
The original text...
• either to keep UTF-8 and it is a symbol of plaintext;
• or specify the character encoding UTF-16 for "wide" functions are UTF-8 for "narrow".