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, 6, ['2245', 'H', 'X', '339', '4389', '5331', '6865', '4541', '4845', '6071']

SOLUTION: 13359834933XH

PROBLEM: 5, 14, ['E', 't', '3441', '459', '6559', 'q', 'b', '2583', 'Z', 'X', 'F', 'j', '601', '2137', 'S', '9739', 'c', 'I', 'l', '4443']

SOLUTION: 7312106jFXZ3852bq9556

PROBLEM: 13, 14, ['4841', 'r', '2295', '7717', '477', 'p', 'u', '8291', '3425', 'p', '5885', 'H', '2093', 'D', '59', 'R', 'v', '3925', '245']

SOLUTION:
D3902