C111123313121111121111331323133313331333132333133313232233312111   >>    C11112331312111112111133132313331333133313233313331323223331211   <<    C111123313121111121111331323133313331333132333133313232233312113   >>      C111123313121111121111331323133313331333132333133313232233312112   >>