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, 2, ['3303', '6127']

SOLUTION: 72163033

PROBLEM: 10, 10, ['7719', 'K', '7323', '7843', '7079', 'y', '6777', 'M', 'S', 'v', 's', '4857', 'J', '8269', 'm']

SOLUTION: v

PROBLEM: 2, 6, ['9217', '9735', 'a', '9009', 'k', '4813', 'w', 'w', 'A', 'Y', '7955', '4229', 'K', '285', 'C']

SOLUTION:
3184k9009a5379