using System.Collections.Generic;
using System.Threading.Tasks;
namespace ConsoleApplication9
static void Main(string[] args)
string[] arr = new string[10];
for (int i = 0; i < arr.Length; i++) {
arr[i] = Console.ReadLine();
Console.WriteLine(String.Join(" ,", arr));
for (int j = 1; j < arr.Length/2+1; j++) {
int a = int.Parse(arr[2*j-1]);
Console.WriteLine("Avrage class marks: " + sum/(arr.Length/2));
for (int k = 0; k < arr.Length; k += 2) {
int grade = int.Parse(arr[k + 1]);
Console.WriteLine(name + " is not accepted");