You will be given a definition of a task first, then some input of the task.
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.

Passage: Although protected by a small fort built near the shoreline in 1521, the city of Chaul was not fortified. Just as the threat of a siege became evident, the captain of the city, Dom Luis Freire de Andrade ordered the evacuation of women, children and elderly to Goa and barricades be set up in the main streets with artillery. In October, Dom Francisco de Mascarenhas arrived from Goa with 600 men and immediately ordered the digging of an extensive network of ditches, trenches, earthen walls and defensive works around the outer perimeter of the city, fortifying outer households into blockhouses and demolishing others to clear the line of fire for the artillery. In December 15, the vanguard of the army of Ahmadnagar, arrived under the command of an Ethiopian general, Faratecao , and clashed with the Portuguese, who repelled the attack. The Nizam arrived with the rest of his army on December 21. Through a spy, the Portuguese uncovered that the forces of the Nizam Ul-Mulk Shah of Ahmadnagar might have risen up to 120,000 men, including many Turkic, Abyssian, Persian, Afghan and Mughal mercenaries, 38,000 horsemen and 370 war elephants, supported by 38 heavy bombards. It is likely not all were fighting men; according to Antonio Pinto Pereira:.
Output:
Dom Francisco de Mascarenhas arrived in what city in October of 1521?