using System;

namespace ForLesson15
    {
    class Program
        {
        static void Main ( )
            {
            Console . WriteLine ( Glas ("a") );
            }

        static bool Glas ( string c )
            {
            string engGlas = "aeiouy";
            bool isGlas = false;
            if ( engGlas .Contains(c) )
                {
                return isGlas = true;
                }
            return isGlas;
            }
        }
    }