There are two letters in this cartoon character's eyes. Which two are they?

Are there any letters in Sasuke's sharingan? I feel dizzy. Sasuke Uchiha's left eye shot (the highest skill of escaping from fire ninja) is also nicknamed the six-pointed star sharingan, and his right eye is endowed with life on earth (controlling the morphological changes of melanosis), and his eyes must be able to assist (bow and arrow and melanosis can be used, the attack speed is extremely fast, and he can open the whole body, and he can further evolve after absorbing bijuu and chakra, and the strongest skill is "Indra's Arrow"). There are also pictures on the Internet showing that there is the word Feng Shui Lei in the six-pointed star. I haven't seen it anyway, and my eyes are not good.