Definition: 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.
Input: Passage: After the fall of Ava, many independent resistance movements sprang up across a panicked Upper Burma. Yet the Hanthawaddy command left less than 10,000 troops to pacify all of Upper Burma. Alaungpaya, who founded the Konbaung Dynasty, quickly emerged as the main resistance leader, and by taking advantage of Hanthawaddy's low troop levels, went on to conquer all of Upper Burma by the end of 1753. Hanthawaddy belatedly launched a full invasion in 1754 but it faltered. Konbaung forces invaded Lower Burma in January 1755, capturing the Irrawaddy delta and Dagon  by May. The French defended Syriam held out for another 14 months but eventually fell in July 1756, ending French involvement in the war. The fall of the 17-year-old southern kingdom soon followed in May 1757 when Pegu was sacked. Lan Na, Martaban, Tavoy and Sandoway all submitted after Pegu's fall. 
Question: How many towns submitted after Pegu's fall? 
Answer type: Number 
Output:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
4.