using System;

namespace CharType
{
    class MakeUpperCaseNotWar
    {
        static void Main(string[] args)
        {
            for(int i = 0; i < 5; i++)
            {
                WriteIfUpperChar(ReadChar());
            }
        }
    private static void WriteIfUpperChar(char someChar)
        {
            if (char.IsUpper(someChar))
                Console.WriteLine(someChar);
        }

    private static char ReadChar()
        {
            return char.Parse(Console.ReadLine());
        }
    }
}