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: 1, 8, ['X', 'I', '9323', 'A', 'v', 'd', '7685', 'Z', 'p']

SOLUTION: Z5867dvA3239IX

PROBLEM: 5, 8, ['1861', '2831', '6423', '9641', 'o', 'J', '8215', '4149', '5345', '4371', '7747']

SOLUTION: 94145128Jo

PROBLEM: 5, 6, ['P', 'F', '5913', 'w', '3721', 'M', '1905', 'W', 'v', 'D', 'x', '4683']

SOLUTION:
M1273