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, 2, ['7921', 'Q']

SOLUTION: Q7921

PROBLEM: 2, 3, ['Y', '8113', 'T']

SOLUTION: T8113

PROBLEM: 4, 6, ['I', 's', 'j', 'V', 'E', '1709', '5427']

SOLUTION:
1709EV