B3311331313231311331322331333132233131133132233133313231333131213321   >>    B331133131323131133132233133313223313113313223313331323133313121332   <<    B3311331313231311331322331333132233131133132233133313231333131213323   >>      B3311331313231311331322331333132233131133132233133313231333131213322   >>