Why isn’t this working???
// Only change code below this line
var a = 5;
var b = 10;
var c = " I am a";
// Only change code above this line
a = a + 1;
b = b + 5;
c = c + " String!";
Hey,
Are you able to tell us what happens?
This should end up saying a = 6, b = 15 and c = " I am a String!".
Perhaps it’s the one space that you have at the start of your string " I am a"?
It would also help a lot if you were able to send a link to the challenge this is from 
you have a space in your string:
var c = " I am a";
should be:
var c = "I am a";
Just like @AndreasGuldborg mentioned will be great to provide the full link of the challenge like so.