B3311331313231311331322331333132313331322331323133313231333131333211   >>    B331133131323131133132233133313231333132233132313331323133313133321   <<    B3311331313231311331322331333132313331322331323133313231333131333213   >>      B3311331313231311331322331333132313331322331323133313231333131333212   >>