TASK DEFINITION: In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting 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 reverse first and then concatenate.
PROBLEM: 11, 24, ['1773', '8217', 'W', '3703', '5595', 'f', '9677', '1509', '6451', 'o', 'W', '4899', '4895', '6663', '1999', 'b', '147', 'h', 'R', '8621', '7049', '9943', 'S', '707', '8361']

SOLUTION: 707S349994071268Rh741b9991366659849984W

PROBLEM: 7, 8, ['k', '59', 'Q', 'b', 'N', '5153', 'm', 's', '1703', 'i', 'E', 'x', '4727', '9723', '9305', '8843', '5295', '4281', '555']

SOLUTION: sm

PROBLEM: 1, 1, ['z', 'I', '5211', 'x', '4745', 'y', 'J', 'S', '8879', 'S', 'T', '1539', '2695', 'K', '5655', 'C', '6877', '4163', '4607', 'U', 'M', '9509', 'z', '389', '4837', 'N', '2353', '3957']

SOLUTION:
z