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, 20, ['Z', '1703', '7613', '9735', '9259', '9993', 'w', 'i', '2817', 'f', 'D', 'Q', '7151', '5485', 'K', '1149', 'b', '1953', '1465', 'u', '609', '4609', '4649', '3549']

Z17037613973592599993wi2817fDQ71515485K1149b19531465u