B3311331313231311331322331333132313331322121133133313331323222321311   >>    B331133131323131133132233133313231333132212113313331333132322232131   <<    B3311331313231311331322331333132313331322121133133313331323222321313   >>      B3311331313231311331322331333132313331322121133133313331323222321312   >>