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using System;
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namespace GameOfNums
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{
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    class MainClass
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    {
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        public static void Main(string[] args)
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        {
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            int n = int.Parse(Console.ReadLine());
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            int m = int.Parse(Console.ReadLine());
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            int magic = int.Parse(Console.ReadLine());
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            int counter = 0;
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            int combination = 0;
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            for (int i = n; i <= m; i++)
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            {
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                for (int j = n; j <= m; j++)
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                {
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                    if (j+i==magic)
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                    {
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                        Console.WriteLine($"Number found! {j} + {i} = {magic}");
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                        combination++;break;
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                    }
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                    counter++;
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                }
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                if (combination>0)
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                {
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                    break;
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                }
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            }
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            if (combination==0)
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            {
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                Console.WriteLine($"{counter} combinations - neither equals {magic}");
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            }
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        }
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    }
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}
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