class Program
{
    static void Main()
    {
        try
        {
        	// Coba Fungsi
        	//tekaTekiTeko(10);
            tekaTekiTeko(30);
        }
        catch (Exception ex)
        {
        	// Jika kondisi error
            Console.WriteLine("Error: " + ex.Message);
        }
    }
 
    static void tekaTekiTeko(uint batas)
    {
    	// Validasi dengan Exception
        if (batas < 20)
            throw new ArgumentException("Parameter harus bertipe unsigned integer dan memiliki nilai paling sedikit 20.");
 
		// Loop dari 1 hingga batas
        for (int i = 1; i <= batas; i++)
        {
        	// Variabel untuk menyimpan kata
            string hasil = "";
 
			// Jika habis dibagi 2 tambahkan kata "Teka"
            if (i % 2 == 0) hasil += "Teka";
            // Jika habis dibagi 3 tambahkan kata "Teki"
            if (i % 3 == 0) hasil += "Teki";
            // Jika habis dibagi 5 tambahkan kata "Teko"
            if (i % 5 == 0) hasil += "Teko";
 
			// Jika tidak habis dibagi 2, 3, atau 5 maka cetak angka
            if (string.IsNullOrEmpty(hasil))
                Console.WriteLine(i);
            else
            	// Jika habis dibagi 2/3/5 atau kombinasi maka cetak kata yang sesuai
                Console.WriteLine(hasil);
        }
    }
}

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