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.

3, 6, ['A', '6949', '2045', '119', '1373', '9613']
316937319115402

2, 16, ['6623', 'E', 'S', '8679', '7465', '2769', 'G', '9635', 'Z', 'Y', '6593', '9535', '5247', '2185', '7071', 'P', '7897', 'm']
P17075812742553593956YZ5369G967256479768SE

4, 15, ['2415', '9139', 'P', 'O', 'u', '9607', 'd', 'R', '4397', 'H', '4329', '6133', '1593', '8789', '5655', '3851', 'L', 'o', 'D', 'q', '4299', 's', '7781', '7183', 'L', '2575']

55659878395133169234H7934Rd7069uO