In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 21% of your total grade, each major test is worth 20.5%, and the final exam is worth 38%. Compute the weighted average for the following scores: 81 on the lab, 79 on the first major test, 74 on the second major test, and 90 on the final exam. Enter your answer as a whole number.

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