def teka_teki_teko(batas):
    """
    Fungsi yang mencetak angka dari 1 sampai batas dengan aturan khusus
 
    :param batas: bilangan batas (unsigned integer, minimal 20)
    :raises ValueError: jika batas tidak memenuhi kriteria
    :raises TypeError: jika batas bukan integer
    """
    # Validasi tipe data
    if not isinstance(batas, int):
        raise TypeError("Parameter batas harus berupa integer")
 
    # Validasi nilai minimum dan unsigned (positif)
    if batas < 0:
        raise ValueError("Parameter batas harus berupa unsigned integer (positif)")
 
    if batas < 20:
        raise ValueError("Parameter batas harus memiliki nilai paling sedikit 20")
 
    # Loop dari 1 sampai batas
    for i in range(1, batas + 1):
        output = ""
 
        # Cek pembagian dengan 2, 3, dan 5
        if i % 2 == 0:
            output += "Teka"
        if i % 3 == 0:
            output += "Teki"
        if i % 5 == 0:
            output += "Teko"
 
        # Jika tidak ada yang habis dibagi, cetak angka
        if output == "":
            output = str(i)
 
        print(output)
 
# Testing dan contoh penggunaan
if __name__ == "__main__":
    print("=== TESTING FUNGSI TEKA TEKI TEKO ===\n")
 
    # Test case valid
    try:
        print("Test dengan batas 30:")
        teka_teki_teko(30)
        print()
    except (ValueError, TypeError) as e:
        print(f"Error: {e}\n")
 
    # Test case dengan input invalid
    test_cases = [
        ("string", "Input bukan integer"),
        (-5, "Input negatif"),
        (15, "Input kurang dari 20"),
        (19, "Input tepat di bawah minimum")
    ]
 
    print("=== TESTING ERROR HANDLING ===")
    for test_input, description in test_cases:
        try:
            print(f"\nTest {description} ({test_input}):")
            teka_teki_teko(test_input)
        except (ValueError, TypeError) as e:
            print(f"Error berhasil ditangkap: {e}")
 
 

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