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: After the war, Suzuki was promoted to captain (naval) on 28 September 1907 and commanded the destroyer Akashi (1908), followed by the cruiser  (1909), battleship  (1911) and cruiser  (1912). Promoted to rear admiral on 23 May 1913 and assigned to command the Maizuru Naval District. Suzuki became Vice Minister of the Navy from 1914 to 1917, during World War I.  Promoted to vice admiral on 1 June 1917, he brought the cruisers  and  to San Francisco in early 1918 with 1,000 cadets, and was received by United States Navy Rear admiral (United States) William Fullam. The Japanese cruisers then proceeded to South America.  After stints as Commandant of the Imperial Japanese Naval Academy, Commander of the IJN 2nd Fleet, then the IJN 3rd Fleet, then Kure Naval District, he became a full admiral on 3 August 1923. Suzuki became Commander in Chief of Combined Fleet in 1924.  After serving as Chief of Imperial Japanese Navy General Staff from 15 April 1925 to 22 January 1929, he retired and accepted the position as Privy Councillor and Chamberlain of Japan from 1929 to 1936.
How many different Commander stints did Suzuki have between 1918 and 1923?