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: 1, 2, ['z', '1877']

SOLUTION: 1877z

PROBLEM: 14, 15, ['b', '863', '5093', '7589', '6635', 'X', '863', '8197', '3571', 'u', 'J', '1331', 'M', 'z', '9965', '3989', '2677', 'm']

SOLUTION: 9965z

PROBLEM: 9, 15, ['5137', '7', '6823', '1541', 'g', '5439', '6269', 'D', 'm', 'R', '7305', '3339', '4655', 'Y', 'R', 'q', '1411', '141', '5935', '2187']

SOLUTION:
RY465533397305Rm