TASK DEFINITION: In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting 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 reverse first and then concatenate.
PROBLEM: 5, 24, ['7075', '6533', '1037', '3589', 'p', 'X', 'X', 'c', '5373', 'n', 'Q', '2281', '551', '3145', '541', '4495', 's', '5979', 'T', 't', '9121', 'O', '9105', 'V', '7855']

SOLUTION: V5019O1219tT9795s594414554131551822Qn3735cXXp

PROBLEM: 1, 4, ['6969', 'P', '8161', '6347', 'P', 'S', 'z']

SOLUTION: 74361618P9696

PROBLEM: 1, 1, ['H', 'r', 'F', 'I', '6403']

SOLUTION:
H