C111123313121111121111331333133313113313231313231333132322331311332321   >>    C11112331312111112111133133313331311331323131323133313232233131133232   <<    C111123313121111121111331333133313113313231313231333132322331311332323   >>      C111123313121111121111331333133313113313231313231333132322331311332322   >>