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: 8, 16, ['n', 'M', 't', '2553', 'F', 'R', 'g', '415', '8313', '7105', '7725', '6881', '7531', 'N', 'B', '3295', '7989', '2863', 'y', 'N', 'Y', 'C', '5887', '2661', '155', '5889', '8433', 's', 'i', 'b']

SOLUTION: 3295BN75316881772571058313415

PROBLEM: 12, 24, ['H', 'Q', '9143', '6321', '1743', '9859', '433', '6959', '7363', '8093', 'D', 'W', 'u', '9719', '8221', '6345', '8815', '1257', 'i', 'Q', '8803', '8037', '5785', '1581']

SOLUTION: 1581578580378803Qi12578815634582219719uW

PROBLEM: 7, 15, ['o', 'P', 'A', '2069', '989', '6501', 'A', 'U', 'r', 'b', '7911', 'h', 'f', 'R', 's', '2059', 'c', '6849', '5791', '233', '8411', 'v']

SOLUTION:
sRfh7911brUA