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, 3, ['T', 'K', 't', '7165', '2285', 'm']

SOLUTION: tK

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: 2, 7, ['b', 'G', 'P', 'W', '4723', 'M', '5431', '3765', 'D', 'M', '7387', 'x', '8019', 't', 'F', 'u', 'O']

SOLUTION:
5431M4723WPG