TASK 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.
PROBLEM: 7, 8, ['6403', 'T', '2925', 'k', 'd', '5945', 'Q', '8379', 'R', '5991', '6583', '7577', 'V', 'Q', '5317', 'K', '7367', '5663', 'e', '1603', '8359', 'J', 'B', '3967']

SOLUTION: 8379Q

PROBLEM: 1, 9, ['T', '7697', '5125', 'Q', 'j', '9397', '4161', '9593', '6887', 'j', 'I', 'E']

SOLUTION: 6887959341619397jQ51257697T

PROBLEM: 15, 21, ['a', '323', '6087', 'F', 'f', 't', 'w', 'M', 'Z', 'r', '3823', 'F', '7277', '7979', '5605', 'Q', 'G', 'b', '4863', 'l', 'R', '5203', 'h', 'C', 'i', 'R', '5863', 'E', 'Q']

SOLUTION:
Rl4863bGQ5605