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: 17, 28, ['H', 'i', 'I', '9297', 'Q', '1267', '4613', '1683', '6233', '1377', '1531', '9675', 'g', '7743', 'M', '545', 's', 'K', '5121', 'v', 'f', 'x', '2313', '7001', 'h', 'W', 'I', '6457', '4421']

sK5121vfx23137001hWI6457