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, 2, ['S', '7763']

SOLUTION: 3677S

PROBLEM: 2, 7, ['P', 'Q', 'i', '1593', 'M', '8577', 'd', 'Y']

SOLUTION: d7758M3951iQ

PROBLEM: 12, 13, ['8813', '7337', 'm', 'Q', 'z', '7053', 'N', 'n', 'c', '5889', '9025', '7373', 'I', 'j', 'p', 'H']

SOLUTION:
I3737

