How to change the default main.cpp generated by CLion

Every time I create a new project in CLion the default main.cpp is written like this:

#include <iostream>

int main() {
    std::cout << "Hello, World!" << std::endl;
    return 0;
}

But I want it to look like this:

/**/

#include <iostream>

using namespace std;

int main(){
    return 0;
}

I searched everywhere but can't undestand how to do it.

Thank you in advance.