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: 3, 9, ['Y', '9075', '2327', '1643', '655', '935', 'a', 'j', 'm']

SOLUTION: mja53955634617232

PROBLEM: 1, 13, ['497', 'v', '7469', 'c', '8913', '533', 'P', '3051', '2237', 'R', '9609', 'J', 'R', 'x', '5787', '2203', '5943', '6847', '8989', 'A', '5227', 'O', 'M', 'n', '4993']

SOLUTION: RJ9069R73221503P3353198c9647v794

PROBLEM: 11, 26, ['U', '9739', '8735', 'T', '5359', 'u', 'p', '7261', '1663', '3669', 'n', 'j', '5831', '1343', '7821', '8781', 'k', 'F', '1345', 'k', 'p', 'U', '1027', 'h', 'O', 'Z', '7317', 'V']

SOLUTION:
ZOh7201Upk5431Fk1878128734311385jn