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: 8, 10, ['f', 'F', '4775', 'F', 'w', 'r', 'v', 'S', 'N', '479', 'e', 'u', 'e', 'e', '2081']

SOLUTION: 974NS

PROBLEM: 3, 6, ['6843', '7805', 'h', '9097', 'O', 'u']

SOLUTION: uO7909h

PROBLEM: 2, 3, ['R', 't', '8281', 'A', 'c', 'V', 'b', '3403', 'P', 'q', '3161', 'I', 'J', '3087', 'O', '3353', '5037', 'w', '1157', 'W']

SOLUTION:
1828t