B331133131323131133132233133313233313331323133211331333133313331311331333223221   >>    B33113313132313113313223313331323331333132313321133133313331333131133133322322   <<    B331133131323131133132233133313233313331323133211331333133313331311331333223223   >>      B331133131323131133132233133313233313331323133211331333133313331311331333223222   >>