 Sometimes ⟨y⟩, ⟨yu⟩, ⟨yo⟩, ⟨ye⟩, ⟨ya⟩ serve as transliteration for ⟨й⟩, ⟨ю⟩, ⟨ё⟩, ⟨е⟩, ⟨я⟩.Lately a more aggressive form of translit appeared, its identifying characteristic being the use of numbers to substitute some of the letters.For example, 4 reads as "ch" and is used to translit letter "ч", from the transliteration of the word "four" in Russian ("Chetyre", четыре), or, arguably, the appearance of the letter similar to that of four in Arabic numerals.