B3311331313231311331322331333132313331322331323133313331312323223313211   >>    B331133131323131133132233133313231333132233132313331333131232322331321   <<    B3311331313231311331322331333132313331322331323133313331312323223313213   >>      B3311331313231311331322331333132313331322331323133313331312323223313212   >>