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: 3, 5, ['9801', '6309', '4085', 'U', 'B']

SOLUTION: BU4085

PROBLEM: 2, 2, ['P', '1275', '4841', 'J']

SOLUTION: 1275

PROBLEM: 2, 10, ['t', '2053', 'x', 'H', 'y', 'k', 'R', 'L', 'z', '1583']

SOLUTION:
1583zLRkyHx2053