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: 9, 17, ['6779', '2141', 't', 'L', '5925', 'E', 'x', '1945', 'm', 'f', '4807', 'j', '3599', 'Y', 'f', 'y', '9147', '1905', '7873', '583', '4411', '9493', 'S', 'X']

SOLUTION: 9147yfY3599j4807fm

PROBLEM: 2, 15, ['4879', 'Z', 'o', 'T', '7235', 'i', 'n', '1291', '3425', 'L', '8661', 'M', 'o', '6529', 'o', 'K', 'W', 'R']

SOLUTION: o6529oM8661L34251291ni7235ToZ

PROBLEM: 21, 21, ['Q', 'f', '5151', 'X', 'L', '8027', '9247', 'p', '4753', '4937', '3163', '4045', '3549', '6523', 'K', 'K', '4847', '4025', 'E', 's', 'A', '3453', '8493', '1885']

SOLUTION:
A