using System;
 
public class Test
{
	public static void Main()
	{
        double d = -0.99999999999999956d;
        decimal result = Convert.ToDecimal(d); // Result = -1
        decimal t = 0M;
        bool b = d < 0;
        if (b) d = -d;
        if (d >= 0.5) { d -= 0.5; t += 0.5M; }
        if (d >= 0.25) { d -= 0.25; t += 0.25M; }
        if (d >= 0.125) { d -= 0.125; t += 0.125M; }
        if (d >= 0.0625) { d -= 0.0625; t += 0.0625M; }
        t += Convert.ToDecimal(d);
        if (b) t = -t;
        Console.WriteLine(t);
	}
}

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