Easy Python
\t\tres=[]\n        arr=[]\n        n=len(nums)\n        for num in nums:\n            arr.extend(num)\n        count=Counter(arr)\n        for i in count:\n   
\t\tres=[]\n        arr=[]\n        n=len(nums)\n        for num in nums:\n            arr.extend(num)\n        count=Counter(arr)\n        for i in count:\n            if(count[i]==n):\n                res.append(i)\n        return sorted(res) if res else res
['Python']