using System;
public class typeA
{
public int size;
public typeA()
{
size=1;
}
}
public class typeB
{
public int test;
public typeB()
{
test=2;
}
}
public class Test
{
public static void Main()
{
typeA t = new typeA();
if(t is typeA)
{
Console.WriteLine(t.size);
}
}
}
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