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: 12, 13, ['w', '2825', '7553', '5565', '4973', '1763', '4755', 'c', 'y', '6241', '7527', '7701', '865']

SOLUTION: 5681077

PROBLEM: 1, 3, ['4523', '3909', 'V', '7275', '5721', '6113', 'G', '5319', '3519']

SOLUTION: V90933254

PROBLEM: 5, 10, ['7769', '3487', '8441', 'B', '1893', '6659', 'L', '2647', 'v', 'Y']

SOLUTION:
Yv7462L95663981