Balanced Log Entries

You are given a list of log entries that represent nested events in a web application. Each log entry starts with an opening tag ('START') and ends with a closing tag ('END'). You need to determine if the log entries are balanced. A log is balanced if every 'START' has a corresponding 'END' in the correct order. Write a program that reads the log entries and prints 'BALANCED' if the log is balanced and 'UNBALANCED' otherwise. Input format: - A single line containing space-separated log entries (e.g., 'START START END END'). Output format: - A single line containing either 'BALANCED' or 'UNBALANCED'. Example: Input: START START END END Output: BALANCED