using System;
using System.Collections.Generic;
using System.Linq;

public class Program
{
  public static void Main()
  {
    int[] numbers = new int[15];
    int rangeNumbers = 0;
    for (var index = 0; index < numbers.Count(); index++) {
      var number = numbers[index];
      if (number >= 1 && number <= 11) {
        rangeNumbers++;
        numbers[index] = (int)Math.Pow(number, 2);
      }
    }
  }
}