Addition of first three numbers: Add the first three numbers together.We start by adding 69, 122, and 496.69+122+496=687
Calculation of 102: Calculate 102.Next, we calculate the square of 10, which is 10 multiplied by itself.102=10×10=100
Subtraction of 102: Subtract 102 from the sum of the first three numbers.Now, we subtract the result from Step 2 from the sum we found in Step 1.687−100=587
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