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, 6, ['3843', 'S', 'Z', '6311', '7521', 'e', 'q', '7861', 'Q', '6899', '7079', 'Z', '1523', '1703', 'B', 'l', 'T', '1111', '351', 'k', '8493', 'c', '2861']

SOLUTION: e75216311Z

PROBLEM: 4, 12, ['8125', 'K', 'W', '8269', '5965', '7005', 'P', 'K', '5753', 'S', '1117', '3797', 'E', 'j']

SOLUTION: 37971117S5753KP700559658269

PROBLEM: 3, 17, ['h', '5731', '4217', '7513', '9921', 'S', '8139', 'R', 'i', 'D', 'e', '319', 's', '8543', 'L', 's', '5519', '9075', '4359', '5719', '4397', '1343']

SOLUTION:
5519sL8543s319eDiR8139S992175134217