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: 12, 16, ['u', '551', 'L', 'g', 'd', '2453', 'J', 'f', '8211', 'L', '241', 'l', 'G', 'F', '9043', 'f', '3977', 'P', '4371', '7687', 'A', '8181', '5251', 't', '6837']

SOLUTION: f9043FGl

PROBLEM: 13, 20, ['q', 't', 'r', '4927', 'K', '8361', '8057', 'j', '6415', '7971', 'n', '4535', 'o', 'k', '9361', '1671', '6953', 'D', 'i', 'C', 'm', '9783', 'y', '3179', '903', 'P', 'V', '4701', 'z', '2819']

SOLUTION: CiD695316719361ko

PROBLEM: 2, 2, ['q', 'q', '9189']

SOLUTION:
q