The following questions ask you to work with the various UTF-n representations of Unicode values. In each case, your answer will be a sequence of bytes represented in hex. To make that clear, prefix your answer with 0x as in 0x0A to represent the decimal number 10. Recall that one hex character corresponds to 4 bits, so you need two hex characters to represent a byte – which is why 10 is 0x0A and not 0xA even though the latter is correct if bytes were not a factor. If there are multiple bytes, just run the hex digits together, so use 0x1234 rather than 0x12 34 or 0x12 0x34.
