Write a Python program to find the Index position of a specified element and print it. And if the specified element is not present then print -1 asthe result.Constraints:Input Format:<Read the List>Output Format:Integer valueExample:Input:['20','HTML','CSS','20','158']"HTML"Output:1Explanation:The List is - ['20','HTML','CSS','20','158']'20' => Index value 0'HTML' => Index value 1'CSS' => Index value 2'20' => Index value 3'158' =>Index value 4Value to search for is => HTMLWhich occupies the Index position 1

Here is a Python program that accomplishes the task:

def find_index(lst, element):
    try:
        index = lst.index(element)
    except ValueError:
        index = -1
    return index

lst = ['20','HTML','CSS','20','158']
element = 'HTML'
print(find_index(lst, element))

This program defines a function find_index that takes a list and an element as arguments. It tries to find the index of the element in the list using the index method. If the element is not in the list, the index method raises a ValueError exception, which is caught and handled by setting index to -1. The function then returns index.

The list and element to search for are defined, and the function is called with these as arguments. The result is printed to the console.