386/б

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _385b
{
	class Program
	{
		static void Main(string[] args)
		{
			double k = double.Parse(Console.ReadLine());
			int odd = 0;

			while (k != 0)
			{
				double num = double.Parse(Console.ReadLine());
				double sum = 0;

				if (num == 0)
				{
					k = 0;
				}

				else if (num >= 100 && num <= 999)
				{
					while (num != 0)
					{
						sum += num % 10;
						num /= 10;
					}

					if (num % 2 != 0)
					{
						odd++;
					}




				}


			}

			Console.WriteLine(odd);
		}
	}
}