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: 2, 4, ['o', '5393', 'p', 'h', '5617', 'F', 'I', 'a']

SOLUTION: hp3935

PROBLEM: 5, 7, ['193', 's', '6617', 'a', 'Y', 'e', '8931', '9801', '3025', '4753', 'c', 'n', '6923', '3925']

SOLUTION: 1398eY

PROBLEM: 11, 12, ['x', 'E', '1569', 'I', 'I', 'R', '9473', '8069', '5401', 'b', '7339', 'C']

SOLUTION:
C9337