TASK DEFINITION: In this task, you are given inputs i, j, and A, where i and j are integers and A is a list. You need to find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output the resultant 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 concatenate the elements and then reverse the string.
PROBLEM: 3, 4, ['P', '7535', '9919', '5299', '8521', 'q', 'q', 'i']

SOLUTION: 52999919

PROBLEM: 13, 23, ['4763', '2429', 'l', '3433', 'W', '4653', 'n', '3171', '555', 'N', '6615', 'G', 'E', 's', 'l', '5877', '7441', '9415', 'w', '5903', '8227', '89', '493', '7633']

SOLUTION: 4938982275903w941574415877lsE

PROBLEM: 3, 14, ['E', '3393', 'J', 'L', '4009', '7919', 'I', '9381', 't', '4937', 'p', 'P', 's', 'H', '5089']

SOLUTION:
HsPp4937t9381I79194009LJ