supported letters and symbols are...
abcdefghij klmnopqrst uvwxyz.?!/ 0123456789 ABCDEFGHIJ KLMNOPQRST UVWXYZ(){} []<>#$%&*+
abcdefghij klmnopqrst uvwxyz.?!/ 0123456789 ABCDEFGHIJ KLMNOPQRST UVWXYZ(){} []<>#$%&*+
abcdefghij klmnopqrst uvwxyz.?!/ 0123456789 ABCDEFGHIJ KLMNOPQRST UVWXYZ(){} []<>#$%&*+
abcdefghij klmnopqrst uvwxyz.?!/ 0123456789 ABCDEFGHIJ KLMNOPQRST UVWXYZ(){} []<>#$%&*+