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: 15, 22, ['2685', '6365', 'I', 'R', 'p', '5535', 'r', '8691', 'c', '8125', 'R', '5371', '4079', '4593', '4231', '9025', 'B', '495', '4773', '7797', 'm', '4049', 'C', 'o', 'a']

SOLUTION: 4049m77974773495B90254231

PROBLEM: 2, 8, ['613', 'z', '4591', 'p', 'e', '8373', '689', '5073', 'p', '7943', '3161', '2481', 'j', 'v', '9863', 'G', '8923', 'S', 'm', 's', '543', '3225', '7617', 'c', '7615', '3219', 'x', 'C', 'f']

SOLUTION: 50736898373ep4591z

PROBLEM: 3, 19, ['4057', 'I', 'r', '3485', '1881', 'o', 'p', '8761', '8579', '9481', '4951', '8379', 'v', 'A', '9283', 'm', '9263', '4595', 'J', '4689', '4253', '2369']

SOLUTION:
J45959263m9283Av83794951948185798761po18813485r