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: 5, 6, ['7565', '6525', '7421', 'u', '303', '1815', '273', '6725', 'i']

SOLUTION: 5181303

PROBLEM: 1, 1, ['N', 'J']

SOLUTION: N

PROBLEM: 7, 19, ['479', 'Z', '9241', '7853', '3613', '1097', 'F', '8747', 'j', '395', 'x', '3499', '7983', 'o', '35', 'W', '6331', 'b', 'p']

SOLUTION:
pb1336W53o38979943x593j7478F

