Given the task definition and input, reply with output. This task involves creating answers to complex questions, from a given passage. Answering these questions, typically involve understanding multiple sentences. Make sure that your answer has the same type as the "answer type" mentioned in input. The provided "answer type" can be of any of the following types: "span", "date", "number". A "span" answer is a continuous phrase taken directly from the passage or question. You can directly copy-paste the text from the passage or the question for span type answers. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words. A "number" type answer can include a digit specifying an actual value. For "date" type answers, use DD MM YYYY format e.g. 11 Jan 1992. If full date is not available in the passage you can write partial date such as 1992 or Jan 1992. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words.

Passage: Mone, one of the largest Shan states controlling Nyaungshwe and Mobye , revolted soon after the army left. Its sawbwa was a brother of the king of Lan Na . In November 1557, Bayinnaung's 23,000-strong forces reinvaded, and easily defeated Mone's forces. The sawbwa fled to Chiang Mai. Bayinnaung pursued the fugitive sawbwa, and arrived at the gates of Chiang Mai after 45 days of arduous march. The king of Lan Na surrendered without a fight on 2 April 1558. By having acquired Mone and Lan Na, Bayinnaung had unknowingly become involved in the dynastic politics of middle Tai country. The ruler of Lan Xang Setthathirath was of Lan Na royalty, and wanted to regain his home kingdom. He attacked Chiang Mai in early 1559 but was repulsed. Setthathirath would prove a thorn to Bayinnaung in years to come.
Question: How many years after Lan Na surrendered to the Bayinnaung did the ruler of Lan Xang Setthathirath attack Chiang Mai?
Answer type: Number
1.