You're developing a user profile and activity tracker for a website. In this task, you'll practice most of the concepts we looked at in the previous chapters.

Your task is to:

1. Declare a constant called DEFAULT_COUNTRY with the value "United States".
2. Declare a variable username and assign it "John Doe".
3. Declare a variable age and set it to 30.
4. Declare a variable called country and set it equal to DEFAULT_COUNTRY.
5. Declare a variable isSubscribed and set it to true.
6. Declare a variable loginCount and set it to 5.
7. Declare a variable loginReward and set it to 250.

1. In the next line, increment the loginCount using the ++ operator.
2. Increase loginReward by 50 using the += operator.

1. Declare a variable welcomeMessage that joins the following strings using the + operator in order:

   • username
   • " is "
   • age
   • " years old and has logged in "
   • loginCount
   • " times. The Login Reward balance is "
   • loginReward

2. Output welcomeMessage using console.log().