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: 6, 10, ['A', '2605', '2029', 'e', 'j', 'P', '5369', '1263', '2071', 'u', '3793', '6137', 'h', '6993']

SOLUTION: u207112635369P

PROBLEM: 3, 4, ['1019', '7135', 'J', 'j', '6487', 'O', 'w', 'x']

SOLUTION: jJ

PROBLEM: 2, 7, ['w', '1559', '9877', 'J', 'e', '9513', '9453', '213', 'z', 't', 'N', 'R', '235', '3273', 'K', '4611', 'm', '6483', '9839', 'U', 'n', 'A']

SOLUTION:
94539513eJ98771559