When I use freopen, and then redirect to the console,I can't see any output

When I use freopen, and then redirect to the console, I can't get any output.

#include <iostream>
using namespace std;
int main() {
    freopen("../hello.txt", "w", stdout);
    cout << "Hello" << endl;
    freopen("CON", "w", stdout);
    cout << "HELLO WORLD" << endl;
    system("pause");
    return 0;
}