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]: 1, 2, ['y', 'n', 'a', '4367', 'Q', 'S']
[EX A]: ny

[EX Q]: 4, 9, ['9213', '2865', '1347', 'Y', 'A', '6261', 'E', 'w', 'r', 'B', 'j', '9157', 'r', '485', '8951']
[EX A]: rwE1626AY

[EX Q]: 2, 25, ['3835', 'N', '1723', '1825', 'z', '3747', '9555', '8947', 'c', 'F', '8157', 'f', 'm', 'x', 'A', 'c', 'h', '4173', '3273', 'w', '3519', '7723', 'z', 'g', '9717']
[EX A]:
7179gz32779153w37233714hcAxmf7518Fc749855597473z52813271N