#include <vector>
#include <numeric>
#include <iostream>
#include <boost/range/adaptor/strided.hpp>
#include <boost/range/adaptor/reversed.hpp>

int main()
{
  std::vector<int> vi(50);
  std::iota(vi.begin(), vi.end(), 0);
  using namespace boost::adaptors;
  for(int i : vi | reversed | strided(3))
    std::cout << i << ' ';
  std::cout << '\n';
}