B3311331313231311331322331333132233131133132233133313231333131133131133123231   >>    B331133131323131133132233133313223313113313223313331323133313113313113312323   <<    B3311331313231311331322331333132233131133132233133313231333131133131133123233   >>      B3311331313231311331322331333132233131133132233133313231333131133131133123232   >>