Hello World !

#include<iostream>
#include <vector>
#include <thread>
int main()
{
    std::string foo="Hello, World";
    std::vector<std::thread> threads;
    for(auto x:foo)
        threads.push_back
        (
            std::thread
            (
                [](char c)
                {
                    while(true)
                        std::cout<<'\t'<<c;
                }
                ,
                x
            )
        );
    for(auto& x:threads)x.join();//Won't reach here, though!
    return 0;
}