a) Write a Python script that defines the string "Welcome to Python" and performs the following, where each operation must consist of one line of Python code using slicing only: Prints all characters from the 6th to the 10th character. . Prints all characters after the 4th character. Prints the last five characters (without assuming the size). Checks and prints whether a given string s is a palindrome (same in reverse). b) Write a python program/script that creates a list that contains the following countries and capitals: "Istanbul", "Turkey", "Cairo", "Egypt", "Baghdad", "Iraq". "Delhi". "India". "Tehran", "Iran", "Riyadh", "Saudi Arabia", "Ankara", "Turkey"; and performs the following: Prints all items that are cities, i.e. elements at even indices Prints the list in reverse using slicing Finds and replaces elements Delhi and India with Muscat and Oman