public static Characters operator +(string s, Characters c2) { return(Characters.Add(s.ToCharArray(), c2.CharArray)); }
public static Characters operator +(Characters c1, string s) { return(Characters.Add(c1.CharArray, s.ToCharArray())); }
public static Characters operator +(Characters c1, Characters c2) { return(Characters.Add(c1.CharArray, c2.CharArray)); }