C x2

C x2C x2C x2C x2C x2C x2
C x2C x2C x2C x2C x2C x2
C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2C x2