Instructions: This task involves creating questions from a given passage that involve some kind of complex reasoning (including numerical reasoning).
The generated questions must require looking at more than one part of the passage to answer. Try to use a variety of reasoning types in your questions (some of the sample reasoning types are illustrated in the 'positive examples' field) and also have a variety of answer types (spans, numbers, dates). A span is a continuous phrase taken directly from the passage or question. In such questions, the answer spans are recommended to be five words. Questions with answer type "number", are expected to start with "How many". For instance, "How long did an event last?" can be phrased as "How many years did an event last?". To increase diversity, try to create more questions for which the answer will be multiple spans. Please create questions that require AT LEAST 2 arithmetic operations as illustrated in the 'positive examples' field. You are encouraged to try DIFFERENT COMBINATIONS of operations and not just limit to the combinations shown in those examples. The more challenging questions you create, the better it is.
Input: Passage: Eventually the Commonwealth Sejm voted to raise the funds necessary to resume large scale military operations. The final attempt by Sigismund and Wadysaw to gain the throne was a new campaign launched on 6 April 1617. Wadysaw was the nominal commander, but it was hetman Chodkiewicz who had actual control over the army. In October, the towns of Dorogobuzh and Vyazma surrendered quickly, recognizing Wadysaw as the tsar. However, the Commonwealth forces suffered defeats between Vyazma and Mozhaisk, and Chodkiewicz's plans for a counterattack and an advance to Moscow failed. Wadysaw did not have enough forces to advance to Moscow again, especially because the Russian support for the Poles was all but gone by that time. In response to Wadysaw's invasion, the burghers of Smolensk revolted against Polish rule, and the Polish troops had to fight their way back as they retreated from the city. However, in 1617 Polish forces, besieged in Smolensk by Russian forces, were relieved by Lisowczycy, when Russian forces retreated to Bely soon after receiving news that Lisowczycy, then commanded by Stanisaw Czapinski, had appeared in the area. In 1618 Petro Sahaidachny's campaign against Muscovy resulted in sacking numerous forts such as Putivl, Kursk, Yelets, and others. Together with Chodkiewicz he laid siege to Moscow in September 1618. Due to unclear reasons, both Hetmans failed to take the city. Negotiations began and a peace treaty was signed in 1618.
Output:
How many forts were sacked by the campaign against Muscovy?