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: 1, 8, ['W', 'h', '3553', 'U', '1267', '355', 'i', '4021', '5353', 'Y', 'j', 'Q', 'x', '2925', '5343', '3931', 'l']

Wh3553U1267355i4021