Assuming That the User Enters 23 and 45 as Inputs

Assuming that the user enters 23 and 45 as inputs for num1 and num2, respectively, what is the output of the following code snippet?
Public static void main(String[] args)
{
Scanner in = new Scanner(System.in) ;
System.out.print("Enter a number: ") ;
String num1 = in.next() ;
System.out.print("Enter another number: ") ;
String num2 = in.next() ;
System.out.println(num1 + num2) ;
}

A) 23
B) 4523
C) 68
D) 2345