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using System;
public class C
{
delegate int di (int x);
delegate string ds (string s);
delegate bool db (bool x);
static bool M (db d) { return d (false); }
static string M (ds d) { return "b"; }
static int M (di d) { return d (0); }
public static int Main ()
{
string[] s = new string[] { "1" };
int[] i = new int[] { 1 };
string s_res = M (x=> M (y=> x.ToLower ()));
int i_res = M (x=> M (y=> (x * 0) + 5));
if (s_res != "b")
return 1;
if (i_res != 5)
return 2;
return 0;
}
}
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