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: 12, 25, ['687', 'M', '8991', 'b', '2063', 'M', '6231', 'H', '9837', 'h', '5835', 'e', '1173', 'z', 'w', 'X', 'z', 'I', '9809', 'X', '149', 'B', 'w', 'M', 'y', '6623', 'f']

e1173zwXzI9809X149BwMy