B331133131323131133132233133313231333132313321133133313331323133313232121221   >>    B33113313132313113313223313331323133313231332113313331333132313331323212122   <<    B331133131323131133132233133313231333132313321133133313331323133313232121223   >>      B331133131323131133132233133313231333132313321133133313331323133313232121222   >>