B3311331313231311331322331333132313331322331323133313331323321311213231   >>    B331133131323131133132233133313231333132233132313331333132332131121323   <<    B3311331313231311331322331333132313331322331323133313331323321311213233   >>      B3311331313231311331322331333132313331322331323133313331323321311213232   >>