Q: 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: In March 1754, Hanthawaddy did what they should have done two years before, and sent the entire army. It would have been 1751-1752 all over again except that they had to face Alaungpaya instead of an effete dynasty. At first, the invasion went as planned. The Hanthawaddy forces led by Upayaza, the heir-apparent and Gen. Talaban defeated the Konbaung armies led by Alaungpaya's sons Naungdawgyi and Hsinbyushin at Myingyan. One Hanthawaddy army chased Hsinbyushin to Ava, and laid siege to the city. Another army chased Naungdawgyi's army, advancing as far as Kyaukmyaung a few miles from Shwebo, where Alaungpaya was residing. The Hanthawaddy flotilla had complete control of the entire Irrawaddy River. But they could not make further progress. They met heavy Konbaung resistance at Kyaukmyaung, and lost many men trying to take a heavily fortified Ava. Two months into the invasion, the invasion was going nowhere. The Hanthawaddy forces had lost many men and boats, and were short on ammunition and supplies. In May, Alaungpaya personally led his armies  in the Konbaung counterattack, and pushed back the invaders to Sagaing, on the west bank of the Irrawaddy, opposite Ava. On the east bank, Hsinbyushin also broke the siege of Ava. With the rainy season just a few weeks away, the Hanthawaddy command decided to retreat. Meanwhile, Burman refugees who had escaped general slaughter by the delta Mons seized Prome , the historical border town between Upper Burma and Lower Burma, and shut the gates to the retreating Hanthawaddy armies. Knowing the importance of Prome for the safety of his kingdom, King Binnya Dala of Hanthawaddy ordered his forces to retake Prome at any cost. Led by Talaban, the Hanthawady forces consisted of 10,000 men and 200 war boats laid siege to Prome.
A:
How many leaders did the Konbaung armies have?