Execution Flow: Quiz I in Scala in Scala

Quiz: What would this code produce if we were to copy-paste it in a code editor and run it?

def welcomeUser(): Unit = {
	println("Hey coder!")
}
def mainFunction(): Unit = {
	println("Welcome back!")
	welcomeUser()
}

Important Note:

Do not use an actual code editor to get the answer! It would defy the whole purpose of the quiz!