using System;
public class Test
{
public static int fun(ref int a)
{
a = 17;
return 3;
}
static void Main(string[] args)
{
int a=1;
int x = a + fun(ref a) * a;
Console.WriteLine(x);
a=2;
x = a + fun(ref a);
Console.WriteLine(x);
}
}
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