Part 1. Definition
In this task, you are given inputs i, j, and A, where i and j are integers and A is a list. You need to find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output the resultant string. i and j will be non-negative, and will always have a value less than the length of A. i will always be less than j. Perform the operations in order, i.e., do not concatenate the elements and then reverse the string.
Part 2. Example
1, 3, ['238', 'h', '92', 'U', '2799']
Answer: 92h238
Explanation: Here, concatenating all the elements between the 1st element and 3rd element in reverse order gives '92h238'.
Part 3. Exercise
1, 7, ['7849', '9969', '6307', '4119', 'j', 'k', 'D', '7159', '5771']
Answer:
Dkj4119630799697849