Mark was organizing two batches of system logs that had already been sorted by their priority levels. Eva asked him to weave these two groups together into one master list while ensuring the final sequence remains perfectly ordered. He needs to connect the individual entries from both sets so that if one group has priority levels 1, 2, and 4 and the other has 1, 3, and 4, the combined result flows as 1, 1, 2, 3, 4, and 4. This helper will allow the team to view a unified history across different server clusters without having to re-sort everything from scratch.