Try the following, the hello world sample works for you
s = new Regex(@"\x03(\d{1,2}(,\d{1,2})?)?").Replace(s, "");
, char , ,
3... strangle L char, \x03
51... 3, regex\d
@EDIT 3:
, , :
" 1. In the Name of Allah, the Most Beneficent, the Most Merciful. \n"
, .Trim()
s = new Regex(@"\x03(\d{1,2}(,\d{1,2})?)?").Replace(s, "").Trim();