What is wrong with my answer? I can't figure it out. I am new here and don't really understand, but I want to learn

[tatapijuanco42]

Tell us what’s happening:
Describe your issue in detail here.

Your code so far

// Only change code below this line
var a;
var b;
var c;
// Only change code above this line

a = a + 1;
b = b + 5;
c = c + " String!";

var a = 6;
var b = 15;
var c = c + "I am a!";

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.55 Safari/537.36

Challenge: Understanding Uninitialized Variables

Link to the challenge:

freeCodeCamp.org

[Jagaya]

@tatapijuanco42

// Only change code below this line
var a;
var b;
var c;
// Only change code above this line

Would you kindly only change code in this area which clearly states to only change code there? ^^

Then the task is for example: a should have a value of 6. There is a line (that you should not change) that adds “+1” to a. What number results in 6, after adding 1?