TASK DEFINITION: In this task, you are given inputs i, j, and A, where i and j are integers and A is a list. You need to find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output the resultant 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 concatenate the elements and then reverse the string.
PROBLEM: 1, 10, ['c', '5993', 'n', 'H', '8699', 'v', '5721', '4691', 'P', 'B', 'A', 'r', '2361', '7181', 'm', '5609']

SOLUTION: BP46915721v8699Hn5993c

PROBLEM: 10, 10, ['f', '6369', 'B', 'p', 'T', '1169', '7861', 'I', 'G', '5077']

SOLUTION: 5077

PROBLEM: 4, 7, ['H', '9585', 'p', 'X', '1473', 'S', '6997', 's', 's', '4239', '7615', '7515', 'w', '2299', 'j', '4385', 'Y', 'V', '1507', 'I', 'z', '6315', 'M', 'p', '8871']

SOLUTION:
6997S1473X

