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, 11, ['7391', '6663', '477', '4991', '1033', 'c', 'X', 's', '2517', 'i', 'M', '8437', 'J']

SOLUTION: Mi7152sXc330119947743666

PROBLEM: 3, 6, ['p', 'H', '2775', '2567', '7787', 'D', '3807', '4817', '5399']

SOLUTION: D787776525772

PROBLEM: 2, 11, ['V', '5693', 'N', 'b', '5487', 'u', '6303', '167', 'f', 'Y', 'G', '8209', 'q', '287', '9571']

SOLUTION:
GYf7613036u7845bN3965