In this task, you are given a sentence in the Hindi language and your task is to convert it into the English language. In translation, keep numbers as it is and make it sentence case (capitalize only the first word of each sentence and noun).
Q: टाइटन IIIC रॉकेट की पहली उड़ान के लिए कॉम्प्लेक्स 40 का इस्तेमाल पहली बार 1965 में किया गया था।
A:

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
Complex 40 was first used in 1965, for the maiden flight of the Titan IIIC rocket.