C111123313121111121111331333133313331333133313331122112322112321   >>    C11112331312111112111133133313331333133313331333112211232211232   <<    C111123313121111121111331333133313331333133313331122112322112323   >>      C111123313121111121111331333133313331333133313331122112322112322   >>