C#
\npublic string[] UncommonFromSentences(string A, string B)\n{\n\treturn A.Split(\' \')\n\t\t.Concat(B.Split(\' \'))\n\t\t.GroupBy(s => s)\n\t\t.Where(s => s.Co
```\npublic string[] UncommonFromSentences(string A, string B)\n{\n\treturn A.Split(\' \')\n\t\t.Concat(B.Split(\' \'))\n\t\t.GroupBy(s => s)\n\t\t.Where(s => s.Count() == 1)\n\t\t.Select(s => s.Key)\n\t\t.ToArray();\n}\n```
[]