problems with challenge 3 of java basics

Hello

I've just spent the last hour trying to complete the following task on the java basics course;

Using the console's printf method, display a message that says, "First name: ", followed by the first name that the user has entered.

This is what I have ended up at (having tried more variables than I can keep track of now)

String firstName = console.readLine ("Manjinder"); String lastName = console.readLine ("Kang"); console.printf("s%", firstName);

and this is the error message I've had come back to me;

Bummer! Ensure your format string contains the required text "First name:".

I don't know what to do now. Please help

// I have imported java.io.Console for you.  It is a variable called console.
String firstName = console.readLine ("Stevie");
String lastName = console.readLine ("On the TV");
console.printf("s%", firstName);