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, 7, ['2725', '1489', 'P', '2021', 'c', '1605', 'R', 'T', 'p', 'q', '6487', '3395', 'u', 'x']

SOLUTION: R5061c

PROBLEM: 6, 9, ['V', 'Y', 'm', '235', 'K', '3381', 'h', 'T', '1455', 'F', '1385']

SOLUTION: 5541Th1833

PROBLEM: 10, 12, ['N', 'E', 'P', '4087', 'D', '1321', 'k', '3411', '1687', '6655', 'N', 'G', '5303', 'c']

SOLUTION:
GN5566