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.

1, 2, ['5111', 'U', '441', '8381']
U1115

10, 27, ['z', '7203', 'd', '1795', '45', '1803', 'L', '2839', '6285', 'W', '1969', 'x', '6565', '8849', '6091', 'M', '7925', '37', 'h', '381', '59', 'O', '3283', 'u', '9831', 'Y', '5701', '7249', 'w']
1075Y1389u3823O95183h735297M190694885656x9691W

2, 11, ['V', '1733', '6973', '8037', '6925', '39', 'x', '1607', 'L', '7827', 'u', '7393', 'V', 'e', 'n', '9645', 'K', '5957']

u7287L7061x935296730837963371