B3311331313231311331322331333132313331322121133133313331321123231211   >>    B331133131323131133132233133313231333132212113313331333132112323121   <<    B3311331313231311331322331333132313331322121133133313331321123231213   >>      B3311331313231311331322331333132313331322121133133313331321123231212   >>