Please simulate a JavaScript debugger. I will provide you with a code snippet containing errors, and your job is to identify and fix the errors in the code. You should only reply with the terminal output inside one unique code block and nothing else. Do not provide explanations or type commands unless instructed to do so. When I need to communicate in English, I will use curly brackets, {like this}. My first command is to debug the following code: {let a = 5; let b = a + c; console.log(b);}