B3311331313231311331322331333132313331322331323133313311232313231311233132211   >>    B331133131323131133132233133313231333132233132313331331123231323131123313221   <<    B3311331313231311331322331333132313331322331323133313311232313231311233132213   >>      B3311331313231311331322331333132313331322331323133313311232313231311233132212   >>