यदि संख्या 5379264 में प्रत्येक सम अंक में 2 जोड़ा जाता है और प्रत्येक विषम अंक से 1 घटाया जाता है, तो इस प्रकार बनी नई संख्या में बाएं से पहले और दाएं से पहले अंक का योग क्या होगा?

If 1 is added to each odd digit and 1 is subtracted from each even digit in the number 3215674, what will be the sum of the digits which are first from the left and third from the right?

If 1 is added to each odd digit and 2 is subtracted from each even digit in the number 753625147635, what will be the sum of the digits that are second from the left and second from the right in the new number thus formed?