B331133131323131133132233133313233313231121133133313232233132313123232223221   >>    B33113313132313113313223313331323331323112113313331323223313231312323222322   <<    B331133131323131133132233133313233313231121133133313232233132313123232223223   >>      B331133131323131133132233133313233313231121133133313232233132313123232223222   >>