Uk (Cyrillic)

Uk (Ѹ ѹ; italics: Ѹ ѹ), is a letter of the Early Cyrillic alphabet, to save space, it was often written like this (Ꙋ ꙋ), called "monograph Uk." Today, Ѹ is extremely rare nowadays and is still used in Church Slavonic, it stands for the number 400.