RecruitingPhase 2Drug trialNeo IRENIE (NEOadjuvant Ipilimumab, RElatlimab, NIvolumab Evaluation)This clinical trial is for patients with stage 3 cutaneous melanoma and patients with mucosal melanoma who are able to have surgery to remove all tumour deposits. To improve the chance that melanoma will not recurr, new experimental combinations of a type of treatment called immunotherapy will be given before surgery.