Suppose Sum and Num Are Int Variables, and the Input

Multiple Choice

Suppose sum and num are int variables, and the input is
20 25 10 18 -1 What is the output of the following code? (Assume that console is a Scanner object initialized to the standard input device.) sum = 0;
Num = console.nextInt() ;
While (num != -1)
{
If (num >= 20)
Sum = sum + num;
Else
Sum = sum - num;
Num = console.nextInt() ;
}
System.out.println(sum) ;

A) 17
B) 28
C) 45
D) 60