using System;
 
class Program
{
    static void Main()
    {
        Console.Write("Введіть x: ");
        double x = Convert.ToDouble(Console.ReadLine());
 
        Console.Write("Введіть y: ");
        double y = Convert.ToDouble(Console.ReadLine());
 
        Console.Write("Введіть u: ");
        double u = Convert.ToDouble(Console.ReadLine());
 
        double powerPart = Math.Pow(u, (x + y) / 2);
        double rootPart = Math.Cbrt((x - 1) / (Math.Abs(y) + 1));
 
        double Q = powerPart - rootPart;
 
        Console.WriteLine("Q = " + Q);
    }
}

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-2.255
3.205