B3311331313231311331322331333132313331322331323133313311221333132322121331121   >>    B331133131323131133132233133313231333132233132313331331122133313232212133112   <<    B3311331313231311331322331333132313331322331323133313311221333132322121331123   >>      B3311331313231311331322331333132313331322331323133313311221333132322121331122   >>