#include <iterator>
#include <vector>
#include <iostream>
 
template<typename InputIt, typename ForwardIt, typename UnaryPred>
void copy_until(InputIt start, InputIt end, ForwardIt d_first, UnaryPred p) {
	while(start != end && p(*start))
	  *d_first++ = *start++;
}
 
int main() {
  std::vector<int> arr;
  int count = 0;
  copy_until(std::istream_iterator<int>(std::cin),
             std::istream_iterator<int>(),
             back_inserter(arr), [&](int) {
               return ++count < 3;
             });
 
  for(int i : arr)
    std::cout << i << ' ';
}

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MSAyIDMgNCA1Cg==

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