B3311331313231311331322331333132313331322331323133313311213113313113313111311   >>    B331133131323131133132233133313231333132233132313331331121311331311331311131   <<    B3311331313231311331322331333132313331322331323133313311213113313113313111313   >>      B3311331313231311331322331333132313331322331323133313311213113313113313111312   >>