Definition: In this task, you are given inputs i,j, and A, where i and j are integers and A is a list. You need to concatenate all elements of A from the ith element to the jth element, and print the resultant 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.
Input: 18, 23, ['H', '8541', 'X', 'M', '2617', 'N', '9829', '6257', 'S', '1609', '3993', 'b', 'h', '5357', 'M', '4449', 'a', 'O', '7983', '8067', 's', '797', 'O']

O79838067s797O