Python Dictionary
```\nclass Solution:\n    def findLonely(self, nums: List[int]) -> List[int]:\n        dict1=dict()\n        l=[]\n        for i in nums:\n            if(i in d
```\nclass Solution:\n    def findLonely(self, nums: List[int]) -> List[int]:\n        dict1=dict()\n        l=[]\n        for i in nums:\n            if(i in dict1.keys()):\n                dict1[i]=-1\n            else:    \n                dict1[i]=1\n            dict1[i-1]=-1\n            dict1[i+1]=-1    \n        for i in nums:\n            if(dict1[i]==1):\n                l.append(i)\n        return l
['Python', 'Python3']