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: 2, 3, ['T', '2161', '227']

SOLUTION: 7221612

PROBLEM: 1, 7, ['j', 'P', '5633', 'g', 'z', '3163', '8849', '1267', '1157', '6987', '9743']

SOLUTION: 94883613zg3365Pj

PROBLEM: 7, 11, ['8091', '303', 'R', '139', '8143', 'H', '3267', '5387', '7365', 'd', 'R', 'g']

SOLUTION:
Rd563778357623