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, 5, ['8095', 'D', '9477', '9307', '9355', 'U', 'y', '5197', '2691', '3061']

SOLUTION: 5539

PROBLEM: 1, 5, ['d', 'p', 'B', 'i', '5865', '4569']

SOLUTION: 5685iBpd

PROBLEM: 6, 16, ['1575', '4763', '4399', '6505', 'f', 'i', '6199', 'i', '2783', 't', 'j', '4901', '3109', 'D', '6245', '645', '8487', '9335', 'L']

SOLUTION:
5465426D90131094jt3872i9916i