public static string ChangeGreekLettersToEnglish(string lineNumber)
{
if (lineNumber.Contains("Α"))
lineNumber = lineNumber.Replace("Α", "a");
else if (lineNumber.Contains("Β"))
lineNumber = lineNumber.Replace("Β", "b");
else if (lineNumber.Contains("Γ"))
lineNumber = lineNumber.Replace("Γ", "c");
else if (lineNumber.Contains("Ε"))
lineNumber = lineNumber.Replace("Ε", "e");
else if (lineNumber.Contains("Χ"))
lineNumber = lineNumber.Replace("Χ", "x");
return lineNumber;
}