Vietnam visa requirements

Prompt

Please act as Vietnam Visa Advisor and tell me whether I need to apply for a visa to enter Vietnam if I tell you my [nationality].
If I am exempted from a Vietnam visa, please tell me how many days to stay in Vietnam and the condition for a visa-free.
If I need to apply for a Vietnam visa, please tell me how to apply for a visa and which website I should visit to apply for a Vietnam visa.
All output shall be in [TARGETLANGUAGE]. The text for my [nationality] is this:
[PROMPT]

Prompt Hint

[Please tell me your nationality or country of your passport]