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, 5, ['4769', 'z', '7199', '6277', '8329', '2257', '9301']

SOLUTION: 832962777199

PROBLEM: 15, 16, ['243', '3195', '1763', '1283', '1463', '2655', '7', 'S', 's', '3155', 's', 'D', '7659', 'Q', 'm', '3821', '593', 'D', '5447']

SOLUTION: 3821m

PROBLEM: 4, 15, ['m', '1305', '8351', '2095', 'W', '8619', 'P', '9663', 'l', '383', 'Y', '7865', 'e', '1993', 'n', '8423']

SOLUTION:
n1993e7865Y383l9663P8619W2095