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: 2, 15, ['447', 'F', '3469', 'B', 'q', '6273', 'G', '2973', '5109', 'A', 'O', '2849', '4469', '1995', 'm', '5735', '2011', '3255', '2653', 'p', '3383']

SOLUTION: m199544692849OA51092973G6273qB3469F

PROBLEM: 2, 8, ['B', '6435', 'S', 'W', 'k', '1127', 'v', 't', 'G', 'N', '7331', 'O', 'b', 'V', '3141', 'E', 'L', 'F', '2333', 'y', '9783', 'u', 'T']

SOLUTION: tv1127kWS6435

PROBLEM: 11, 17, ['2417', '1873', '8907', 'O', '715', '3207', 'L', '9753', '7963', '9863', 'l', '9861', 'B', 'S', '1551', 'j', 'X', 'q', '6007', '7223', '7165', '6809', '8601', '6415', 'A', 'i', 'S', 'e', 'i', 'W']

SOLUTION:
Xj1551SB9861l