In the number '37582146', add 1 to each odd digit and subtract 1 from each even digit. Then, arrange the second, third, seventh, and eighth digits of the newly formed number in descending order from the left end, followed by the rest of the digits in ascending order. What is the sum of the second even digit from the left end and the third odd digit from the right end in this final arrangement?

Two sets of numbers are given below. In each set, certain mathematical operation(s) on the first number result in the second number, and on the second number result in the third number, and so on. Which of the given options follows the same set of operations? (NOTE: Operations should be performed on whole numbers without breaking down digits.) Set 1: 5 - 12 - 25 - 18 Set 2: 9 - 16 - 33 - 26

If 2 is added to each odd digit and 2 is subtracted from each even digit in the number 7586134, what will be the sum of the third digit from the left and the third digit from the right in the new number thus formed?