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.
--------
Question: 12, 12, ['d', 'E', 'x', '3077', 'H', 'G', '7227', '1323', '997', '8825', '9645', '6573']

Answer: 6573


Question: 1, 6, ['Z', '3889', '8691', '3351', '6561', '3677', '2089', '2297', '3427', 'd', 'N', '8013', 'u', 'T', '9281', 'Q', '9227', '7239', 's', '33', '3339', '3353', '2939', '6361', '4041', '2779', '1387']

Answer: Z38898691335165613677


Question: 6, 21, ['5291', '9427', 'x', '5787', '7223', 'N', '9603', 'Y', 'F', 'E', '379', 'T', 'o', '4557', 'C', 'P', '2405', '2285', 'L', '7473', 'x', 'n', '6525', 'J', 'W', '3469']

Answer:
N9603YFE379To4557CP24052285L7473x