B3311331313231311331322331333132313331322331323133313331313232212113313222321   >>    B331133131323131133132233133313231333132233132313331333131323221211331322232   <<    B3311331313231311331322331333132313331322331323133313331313232212113313222323   >>      B3311331313231311331322331333132313331322331323133313331313232212113313222322   >>