using System; 
using System.Collections.Generic;
 
namespace Examples { 
 
class Geeks { 
 
    // function containing params parameters 
    public static int Add(params int[] ListNumbers) 
    { 
        int total = 0; 
 
        // foreach loop 
        foreach(int i in ListNumbers)  
        { 
            total += i; 
        } 
        return total; 
    } 
 
// Driver Code     
static void Main(string[] args) 
{ 
    var a = new List<int>() {1,2,3,4,5};
    int y = Add(a.ToArray()); 
 
    // Displaying result 
    Console.WriteLine(y); 
} 
} 
} 

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