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, 4, ['D', '7459', 'y', 'B', '1671', 'x', 'Y']

SOLUTION: By

PROBLEM: 1, 2, ['o', 'b', '7511', 'Z']

SOLUTION: bo

PROBLEM: 9, 22, ['869', 'z', 'f', 'C', '6999', 'u', '3135', 'x', '4625', 'C', '3211', 'B', '4833', '8267', '3719', '3129', '3649', 'B', '9787', 'V', 'j', 'y']

SOLUTION:
yjV9787B36493129371982674833B3211C4625