#include <algorithm>
#include <iostream>
#include <iterator>
#include <vector>

template<typename T>
std::ostream & operator<<(std::ostream & os, std::vector<T> vec)
{
    os<<"{ ";
    std::copy(vec.begin(), vec.end(), std::ostream_iterator<T>(os, " "));
    os<<"}";
    return os;
}

int main()
{
    std::vector<int> v1(6, 1);
    std::vector<int> v2(4, 0);
    std::cout<<v1<<"\n"<<v2<<"\n";
    return 0;
}