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, 8, ['g', 'a', '2875', '9581', '3263', '3103', 'J', 'b', 'h']

SOLUTION: bJ30133623

PROBLEM: 2, 8, ['7283', '1463', 'A', '6121', 'H', '173', '8829', 'V']

SOLUTION: V9288371H1216A3641

PROBLEM: 4, 7, ['5421', 'O', 'u', '4751', '4673', 'b', '2319', '6923', '5783', 'Z', 'J', '501', 'O', 'B', 'y']

SOLUTION:
9132b37641574