Write a program that reads a string. Use nested try-catch blocks:
- The **outer** try-catch parses the string as an integer. If it fails, catch NumberFormatException and print "Outer: not a number".
- Inside the outer try, the **inner** try-catch accesses arr[index] where arr = {5, 10, 15}. If that fails, catch ArrayIndexOutOfBoundsException and print "Inner: index out of bounds".
- If both succeed, print the element.

⚠️ AUTO-INPUT MODE: The input stream will automatically contain '1\n'.