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ParameterMysteryExam4

Language/Type: C# parameters return

The following console program uses parameters and produces four lines of output. What are they? 

public class ParameterMysteryExam4
{
    public static void Main()
    {
        int x = 5;
        int y = 1;
        int z = 9;
        int w = y + 2;

        Surprise(x, y);
        x = Surprise(z, w);
        w++;
        z = Surprise(w, x);
        surprise(y, z);
    }

    public static int Surprise(int y, int x)
    {
        x++;
        Console.WriteLine(x + " " + y);
        y--;
        return x;
    }
}
line 1
line 2
line 3
line 4

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