C111123313121111121111331333133313331323221211113313223132311111   >>    C11112331312111112111133133313331333132322121111331322313231111   <<    C111123313121111121111331333133313331323221211113313223132311113   >>      C111123313121111121111331333133313331323221211113313223132311112   >>