What's wrong plesse help

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

Your code so far

// Only change code below this line
var a;
a = 5;
var b;
b = 10;
var c =  " I am a ";
// Only change code above this line

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

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36

Challenge: Understanding Uninitialized Variables

Link to the challenge:

…?

The spacing in this string isn’t correct.