using System;           

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public class Program

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{

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    public static void Main()

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    {

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        int [] A =  {1, 2, 3, 4, 5} ;

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        float avg = 0;  

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    for (int i =0; i<A.Length; i++) 

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    {

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         avg +=  A[i]; 

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    }

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        avg = avg / A.Length ;

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        Console.WriteLine(avg); }  }