#include <fstream>
#include <iostream>
#include <iterator>

int main()
{
    std::ifstream in("data.in");

    std::istream_iterator<int> begin(in);
    std::istream_iterator<int> end;
    std::cout << *begin++ << "\n"; // read the first int

    ++begin; // skip the 2nd int
    std::cout << *begin++ << "\n"; // read the third int
    while (begin != end) {
        std::cout << *begin++ << "\n"; // read and print the rest
    }
}