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, 4, ['s', 'n', '6721', 'W', 'H']

SOLUTION: W6721ns

PROBLEM: 8, 10, ['A', 'C', '6441', '275', 'O', 'v', '5787', 'E', 'h', '6821', 'x', '2819', 'N', '3909']

SOLUTION: 6821hE

PROBLEM: 1, 27, ['G', 'V', '5909', '8847', '1979', 'K', '2911', 'm', 'Y', '7045', 'X', 'N', 'H', '1271', 'm', 'R', 'z', '9725', 'B', 'B', '2389', '8347', '1043', 'i', 'e', 'N', '2807']

SOLUTION:
2807Nei104383472389BB9725zRm1271HNX7045Ym2911K197988475909VG