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: 15, 23, ['Z', 'h', '4813', '7715', '8439', 'K', '9249', 'F', '9871', '6511', '1841', '4613', '5657', '8623', '4613', '8861', 'v', '3809', 'F', '7859', '9527', '4655', 'l', '8455', '4727', 'V', 'I', 'H', '3505', '6039']

SOLUTION: l556472599587F9083v16883164

PROBLEM: 2, 3, ['T', '9003', '3731', '287', '7101', 'm', '2147', '6123', '6319']

SOLUTION: 13733009

PROBLEM: 4, 10, ['I', 'd', '9057', 'B', '3865', '6729', 'E', 'y', 'D', '2741']

SOLUTION:
1472DyE92765683B