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, 22, ['E', '9437', 'R', 'M', 'p', 'A', '7261', '4163', '8357', '6555', 'I', 'T', '5471', 'G', 'S', '3447', 'C', '5845', 'I', '3817', 'p', '6781']

SOLUTION: 6781p3817I5845C3447SG5471TI6555835741637261ApMR9437

PROBLEM: 12, 14, ['8471', '6883', '8267', 'D', '385', 'Q', '6725', '1239', '2767', '7219', '4423', '5391', '8513', '5963']

SOLUTION: 596385135391

PROBLEM: 3, 12, ['2523', 'g', '8505', 'R', '1093', 'h', '5607', 't', '1149', '8409', '6199', 't', 'U', '5953']

SOLUTION:
t619984091149t5607h1093R8505