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Language/Type: C# parameters return

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

public class ParameterMysteryExam2
    public static void Main()
        string x = "happy";
        string y = "pumpkin";
        string z = "orange";
        string pumpkin = "sleepy";
        string orange = "vampire";

        Orange(y, x, z);
        x = Orange(x, z, y);
        Orange(pumpkin, z, "y");
        z = "green";
        Orange("x", "pumpkin", z);
        Orange(x, z, orange);

    public static string Orange(string z, string y, string x)
        Console.WriteLine(y + " and " + z + " were " + x);
        return x + y + z;
line 1
line 2
line 3
line 4
line 5

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