example.cpp

#include <iostream>
#include <vector>
#include <algorithm>
 
int main(void)
{
    int i;
    std::vector<int> v;
    while (std::cin >> i)
    {   
        v.push_back(i);
    }   
    std::sort(
            v.begin(),
            v.end());
    std::for_each(
            v.begin(),
            v.end(),
            [](int j){std::cout << j
                                << std::endl;});
    return 0;
}