Turn third digit number from left to right for example 201 to 102.
letter = (upside % 10) * 100 + ((upside / 10) % 10) * 10 + (upside / 100) % 10;
Turn third digit number from left to right for example 201 to 102.
letter = (upside % 10) * 100 + ((upside / 10) % 10) * 10 + (upside / 100) % 10;