Sin(8)

ζœ€θΏ‘γ‚¦γƒžε¨˜γ«γ―γΎγ£γ¦γ„γ‚‹

γƒ‘γ‚Έγƒ­γƒžγƒƒγ‚―γ‚€γƒΌγƒ³(γ‚¦γƒžε¨˜) works (3)