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: 14, 15, ['8571', '9637', 'o', '7821', '3579', 'S', '6353', 'Z', 'D', 'a', '4885', 'P', 'J', 'J', 'U', '2133', '5421', 'F', '4243', 'i', '8035', 'G', '1391', 'p', 'l', '9621', 'y', '145']

SOLUTION: UJ

PROBLEM: 3, 17, ['W', 'X', 'k', '6881', 'R', 'f', 'E', '1657', '801', '271', 'a', 'b', 'C', 'i', 'a', '4329', 'a', '847', 'C', 'c', 'D', '8007', 'V', 'U', 'k']

SOLUTION: a4329aiCba2718011657EfR6881k

PROBLEM: 5, 10, ['6459', '4015', '2033', 'n', '6853', 'a', '8037', 'H', '9691', 'h', '8847', '4333', '4785', 'y', '1227', 'd', 'm', '2247', 'V', '6923', '4071', '3237', 'D']

SOLUTION:
h9691H8037a6853