Help with creation json file

[Janry]

Hello all!
I have problem with creation json file.

My main.cpp

    Json::Value event;
    
    event["competitors"]["home"]["code"] = 23572;
    event["competitors"]["home"]["name"] = "Liverpool";
    event["competitors"]["away"]["code"] = 89223;
    event["competitors"]["away"]["name"] = "Aston Villa";
    
    std::cout << event << std::endl;

when i run this my output like this:

{
  " competitors" :
  {
    "  a way" :
    {
      "   c o de" : 89223,
      "   n a me" : "Aston Villa "
    }  ,
    "  h ome" :
    {
      "   c o de" : 23572,
      "   n a me" : "Liverpool"
    }
  }
}

what's wrong?