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.

[Q]: 3, 6, ['95', '1973', 'L', '8811', '2655', '2661', 'v', 'a', '1115', '7687', '8807', 'r']
[A]: 166255621188L


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


[Q]: 10, 12, ['4911', 's', 'Q', '4295', 'P', 'W', '4015', 'v', 'd', '9557', 'T', 'w', 'c', '8937', 'e']
[A]:
wT7559