The input of the bit value is done in form of a hexadecimal value, which can start with “0x”, but not necessarily. However, a length of at least 3 characters is required. You will be informed about the correct input form if the input value is too short or if characters do not belong to the hexadecimal format. The coefficient, index, target (as hexadecimal, +padding, and as a decimal number) and difficulty (as a decimal number) are displayed. More information are available here.