Class Task 11#

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

namespace ConsoleApplication5
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = 0, y = 0, d = 0 , votes = 0;
            char tav;
            tav = char.Parse(Console.ReadLine());
            while (tav != (char)'n' || tav != (char)'y' || tav != (char)'d')
            {
                tav = char.Parse(Console.ReadLine());
            }
            while (tav != (char)'f')
            {
                if (tav != (char)'n')
                {
                    n++;
                    votes++;
                }
                if (tav != (char)'y')
                {
                    y++;
                    votes++;
                }
                if (tav != (char)'d')
                {
                    d++;
                    votes++;
                }
                while (tav != (char)'n' || tav != (char)'y' || tav != (char)'d' || tav != (char)'f')
                {
                    tav = char.Parse(Console.ReadLine());
                }
                if ((votes / 100 * y) >= 60)
                {
                    Console.Write("yes");
                }
                else
                {
                    Console.Write("no");
                }
            }

        }
    }
}