Sesame Square is a Nigerian version of "Sesame Street", scheduled to have three seasons, one for each letter of the English alphabet, a Latin alphabet consisting of  how many letters?
English alphabet The modern English alphabet is a Latin alphabet consisting of 26 letters (each having an uppercase and a lowercase form) – exactly the same letters that are found in the ISO basic Latin alphabet:
ROT13 ROT13 ("rotate by 13 places", sometimes hyphenated ROT-13) is a simple letter substitution cipher that replaces a letter with the letter 13 letters after it in the alphabet. ROT13 is a special case of the Caesar cipher, developed in ancient Rome.