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, 5, ['6345', '7381', 'm', '5685', '3267', '9841', '9719', 'N', 'e', '1455', 'i', '3989', '3285', '9257', 'u', '8547', '1799']

SOLUTION: 76235865m1837

PROBLEM: 10, 11, ['q', '6245', 'O', '5361', '8343', 'D', 'X', '6285', 'F', 'q', '4911', '9613', 'z', '159', 'Y', '1341']

SOLUTION: 1194q

PROBLEM: 10, 22, ['8807', 'y', '2603', 'D', '4413', 'N', 'W', '31', '5305', 'Z', '1741', 'G', 'P', '3215', '8731', '7101', '7773', '7237', '6829', '3581', '2623', '3825', 'J']

SOLUTION:
528332621853928673273777101713785123PG1471Z