B3311331313231311331322331333132313331322121133133313331333131311112131   >>    B331133131323131133132233133313231333132212113313331333133313131111213   <<    B3311331313231311331322331333132313331322121133133313331333131311112133   >>      B3311331313231311331322331333132313331322121133133313331333131311112132   >>