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.

[EX Q]: 2, 11, ['7391', '6663', '477', '4991', '1033', 'c', 'X', 's', '2517', 'i', 'M', '8437', 'J']
[EX A]: Mi7152sXc330119947743666

[EX Q]: 3, 8, ['w', '7571', 'o', '235', 's', 'n', '3941', '6357', '3251', 'G', '5961', 'z', 'N', '5029', '7589', '3993', '5087', '6351', '5799', '1943', '7661', 'S']
[EX A]: 75361493ns532o

[EX Q]: 4, 7, ['2435', '7263', 'v', 'Z', '2171', '3973', 'p', 'x', '1195', '7835', 'L', '2213', 's', 'm', '6455', '2755', 'B', 'h', '231', '6361', 'p', '7375']
[EX A]:
p37931712Z