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: 6, 7, ['8123', 'G', '4941', 'Z', 'i', 'T', '3335']

SOLUTION: 5333T

PROBLEM: 2, 11, ['G', 'z', 'w', 'C', 'h', '6193', 'T', 'r', 'f', 'h', 'p', 'R']

SOLUTION: phfrT3916hCwz

PROBLEM: 4, 5, ['1925', '7427', 'B', '5503', '119', '7427', '5443', 'e', 'p', '5501', '9127', 'L', '4925', 'O', 'p', 'Z', 'K']

SOLUTION:
9113055