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: 4, 5, ['3001', '661', 'S', 'N', '7919']

SOLUTION: 9197N

PROBLEM: 2, 9, ['7175', '1487', '4759', '8719', 'f', '9899', '1987', 'h', 'o', '5495', '3665', 'k', 'j', 'C', 'H', 'V', '9443', '1203', 'j', 'p']

SOLUTION: oh78919989f917895747841

PROBLEM: 12, 15, ['655', 'M', '4011', 'I', 'T', 'u', 'F', '8283', 'n', 'F', '1711', 'f', 'D', '2833', '8911', 'f', '3701', 'y', '4283', '3103', '7177', 'V']

SOLUTION:
11983382Df