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: 10, 17, ['3583', 'B', 'h', '2719', 'Y', '4557', 'K', '6897', '6245', '599', 'x', 'G', '4969', 'g', 'm', 'i', 'e', '1619', '5123', 'P', '1139', 'i', '3569', '2577']

SOLUTION: eimg9694Gx995

PROBLEM: 5, 7, ['Y', '5101', 'B', '5129', 'a', 'y', 'v', '4577', '5455', '6685', '6435']

SOLUTION: vya

PROBLEM: 12, 14, ['9829', 'L', '8453', '8387', 'm', '7257', '3645', 'L', '577', 'X', 'l', '4257', 'P', 'o', '4499', 'm', '8655', '6157', 'G', '9249', '8673', '9181', 'V', 'V', 'x', '4589', 'B']

SOLUTION:
oP7524