How much do you pay for Customs when you import 6 liters of alcohol?

I want to buy some alcohol, specifically 6 liters of Baileys, from Cyprus and import it to Syria. I would like to know what the customs rules are and if I have to declare them. If I do declare them how much do I pay? I will be paying about 100 Euros for all the alcohol and will be putting it in my suitcase. I really need an answer ASAP so please help me out!