def tekaTekiTeko(batas: int):
    if not isinstance(batas, int) or batas < 20:
        raise ValueError("Parameter batas harus berupa bilangan bulat positif (unsigned integer) dan minimal 20")
 
    for i in range(1, batas + 1):
        if i % 2 == 0 and i % 3 == 0 and i % 5 == 0:
            print("TekaTekiTeko")
        elif i % 2 == 0 and i % 3 == 0:
            print("TekaTeki")
        elif i % 2 == 0 and i % 5 == 0:
            print("TekaTeko")
        elif i % 3 == 0 and i % 5 == 0:
            print("TekiTeko")
        elif i % 2 == 0:
            print("Teka")
        elif i % 3 == 0:
            print("Teki")
        elif i % 5 == 0:
            print("Teko")
        else:
            print(i)
 
print("\n===== Test parameter valid =====\n")
 
try:
    tekaTekiTeko(30)
except ValueError as e:
    print(f"Error: {e}")
 
print("\n===== Test parameter tidak valid =====\n")
 
try:
    tekaTekiTeko(19)
except ValueError as e:
    print(f"Error: {e}")

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