Browser Backward Navigation

You are building a simple browser that supports backward navigation. For each valid URL visited, the user can go back one step to the previous URL. Write a program to manage the browser history and output the current URL after a series of back operations. Input Format: - The first line contains an integer n (1 <= n <= 1000), the number of URLs. - The next n lines each contain a URL visited. - The last line contains an integer m (1 <= m <= 1000), the number of back operations. Output Format: - Print the final current URL after performing all back operations. If there are no URLs to go back to, print 'No more URLs'. Example: Input: 5 example.com example.org example.net example.edu example.io 3 1 1 1 Output: example.org