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: 7, 8, ['9589', 'N', 'w', '429', '5545', '5047', '4133', 'p', 'a', '3793']

SOLUTION: p3314

PROBLEM: 10, 13, ['v', '9787', '3803', 'P', 'M', '7127', '7845', '6369', 'u', '8715', 'I', '7491', '6593', '459', '1747', 'L']

SOLUTION: 39561947I5178

PROBLEM: 2, 7, ['X', 'Y', 'k', '929', '6743', 'n', '1241', '8959', '1193']

SOLUTION:
1421n3476929kY