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using System;
using System.Collections;
using System.Collections.Generic;
class A
{
public void Method ()
{
}
}
class C : IEnumerable, IEnumerable<A>
{
public class GetEnumerator
{
}
IEnumerator IEnumerable.GetEnumerator ()
{
throw new ApplicationException ();
}
IEnumerator<A> IEnumerable<A>.GetEnumerator ()
{
return new List<A> ().GetEnumerator ();
}
}
class D : C
{
}
public class Test
{
public static int Main ()
{
foreach (var v in new C ()) {
v.Method ();
}
foreach (var v in new D ()) {
v.Method ();
}
return 0;
}
}
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