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, 6, ['1467', 'm', '9771', '6533', 'm', 'x', 'c', 'd', '3139']

SOLUTION: xm33561779m

PROBLEM: 9, 12, ['4549', 'k', 'i', 'J', '8181', 'N', 'Y', '9995', 'I', '6427', '1891', 'Z', 'T', '6475', 'x', '7047', 'c', '2339', '8877', 'x', '9363', '8877', 'C', 'i', 'k', 'L', '2819']

SOLUTION:
Z19817246I