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: 3, 8, ['w', '7571', 'o', '235', 's', 'n', '3941', '6357', '3251', 'G', '5961', 'z', 'N', '5029', '7589', '3993', '5087', '6351', '5799', '1943', '7661', 'S']

SOLUTION: 75361493ns532o

PROBLEM: 8, 9, ['2123', 'O', '2505', 'd', '5435', '2145', '8281', 'b', 'v', '6485', '2349', '8739', '8459', 'O', 'h', '8279', 'L', '8345', 't', 'T', '5075', '7295', 'X']

SOLUTION: vb

PROBLEM: 1, 1, ['V', 'v', '63']

SOLUTION:
V