The town 's crest reads `` MÃ do rug CÃ Chulainn CrÃ ga '' ( I gave birth to brave CÃ Chulainn ) Dundalk is twinned with the town of RezÃ in France . The town 's crest reads MÃ do rug CÃ Chulainn CrÃ ga , meaning `` I gave birth to brave CÃ Chulainn '' .