 One way to do this is to write out a snippet of the ciphertext in a table of all possible shifts – a technique sometimes known as "completing the plain component".The example given is for the ciphertext "EXXEGOEXSRGI"; the plaintext is instantly recognisable by eye at a shift of four.Another way of viewing this method is that, under each letter of the ciphertext, the entire alphabet is written out in reverse starting at that letter.