Emergency Room Triage

An emergency room needs an automated triage system. Each patient has a Name, a Severity (1-10, where 1 is most urgent), and an Age. The system must always call the most urgent patient (lowest severity). If severities are tied, the oldest patient is called first. If both severity and age are tied, call the patient whose name comes first alphabetically. Input Format: - The first line contains N, the number of operations. - Each operation is either 'ARRIVE <name> <severity> <age>' or 'NEXT'. Output Format: - For each 'NEXT' command, print the name of the patient to be treated. If the ER is empty, print 'IDLE'. Example: Input: 5 ARRIVE Alice 3 25 ARRIVE Bob 3 40 ARRIVE Charlie 1 30 NEXT NEXT Output: Charlie Bob