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: 1, 1, ['9675', 'e', '4343', '8021']

SOLUTION: 5769

PROBLEM: 1, 9, ['v', '289', 'O', 'w', 'y', 'r', 's', 'T', '659', 'y', 'a', '9161', 'Y', '5075', 'M', 'L', '5915']

SOLUTION: 956TsrywO982v

PROBLEM: 1, 3, ['C', '9185', 'A', 'r', 'Q', 'r', 'k', '6515', '6861', '7101', 'm', 'D', 'f', 'Q', 'R', 'p', 'M', '9505', '6545', 'e', 'F', 'p', 'R', 'm', '4437', '8379', '59', 'z', 'M', '1907']

SOLUTION:
A5819C

