B3311331313231311331322331333132313331322331323133313311211111221321   >>    B331133131323131133132233133313231333132233132313331331121111122132   <<    B3311331313231311331322331333132313331322331323133313311211111221323   >>      B3311331313231311331322331333132313331322331323133313311211111221322   >>