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, 3, ['7635', 'c', 'h', 'D', 'K', '7235', 'e']
hc5367

1, 3, ['2119', '2237', 'O']
O73229112

1, 10, ['G', '6163', '9269', 'Z', '927', '7959', 'L', 'H', '9613', '5645', 'o', '9921']

54653169HL9597729Z96293616G