100%
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos
x =cos