C111123313121111121111331333133313113313231313231333132322331323221121   >>    C11112331312111112111133133313331311331323131323133313232233132322112   <<    C111123313121111121111331333133313113313231313231333132322331323221123   >>      C111123313121111121111331333133313113313231313231333132322331323221122   >>