B3311331313231311331322331333132313331322121133133313331333133313113311222321   >>    B331133131323131133132233133313231333132212113313331333133313331311331122232   <<    B3311331313231311331322331333132313331322121133133313331333133313113311222323   >>      B3311331313231311331322331333132313331322121133133313331333133313113311222322   >>