B3311331313231311331322331333132313331322331323133313311221333132311312132321   >>    B331133131323131133132233133313231333132233132313331331122133313231131213232   <<    B3311331313231311331322331333132313331322331323133313311221333132311312132323   >>      B3311331313231311331322331333132313331322331323133313311221333132311312132322   >>