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: 16, 17, ['5473', '5513', 'G', '2465', '1513', 'Z', '5341', 'X', 'R', '4355', '3215', 'W', 'k', 'C', '9845', '5377', 'c', '3169', '7049', '9795', 'R', '7301', 'C', 'm', '983', '2997', 'I']

SOLUTION: c5377

PROBLEM: 2, 4, ['7887', 'x', '3749', 'N', 'U', '2971']

SOLUTION: N3749x

PROBLEM: 1, 20, ['g', '6591', '6071', '2781', '7031', '4993', '4613', '3075', 'K', '4037', '5', '2377', '6337', 'E', '7875', '481', '4123', '3811', 'f', 'I', '4899', 'D']

SOLUTION:
If381141234817875E6337237754037K3075461349937031278160716591g