Unable to type a input for c++

I’m following along the course Unreal Engine C++ Developer: Learn C++ and Make Video Games and I got to a point where I’m stuck. I’ve tried looking through stack overflow to see what the issue is but couldn’t find a solution.

This is the part I’m up to

#include <iostream>

int main()
    std::cout << "You are a secret agent breaking into a secure server room...";
    std::cout << std::endl;
    std::cout << "Enter the correct code to continue..." << std::endl;

    const int CodeA = 4;
    const int CodeB = 5;
    const int CodeC = 6;

    const int CodeSum = CodeA+CodeB+CodeC;
    const int CodeProduct = CodeA*CodeB*CodeC; 

    std::cout << std::endl;
    std::cout << "+ There are 3 numbers in the code" << std::endl;
    std::cout << "+ The code adds up to: " << CodeSum << std::endl;
    std::cout << "+ The codes multiply to give: " << CodeProduct << std::endl;

    int PlayerGuess;
    std::cin >> PlayerGuess;
    std::cout << "Your guess was: " << PlayerGuess;

    return 0;

and this is what the terminal outputs

Screenshot 2021-08-25 152518

Most likely an issue with your antivirus software if you use one. Compile with these flags

cl triplex.cpp /EHsc /Zi