- #include <vector> 
- #include <iterator> 
- #include <algorithm> 
- #include <iostream> 
-   
- int main() { 
-   
-   std::vector<int> nums(std::istream_iterator<int>(std::cin), {}); 
-   std::copy(nums.begin(), nums.end(), std::ostream_iterator<int>{std::cout, " "}); 
- } 
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