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: 10, 10, ['6879', '7973', '9461', 'n', '6159', '2367', 'Q', 'M', '4221', 'F', '7315', 'Y', 'x', '445', 'b', 't', 'h', '9993', '4485', '2471', '5111']

SOLUTION: F

PROBLEM: 4, 6, ['691', 'Q', 'X', 'A', '2501', '7941', 'e', '8967', 'm', '9729', 'O', 't', '7609', 'z', 'Z', 'C', '6027', '2363']

SOLUTION: 79412501A

PROBLEM: 6, 10, ['731', 'm', '2693', 'p', 'L', '7805', 'B', '8275', 't', 'v', '7895']

SOLUTION:
vt8275B7805