instruction:
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:
4, 4, ['r', 'P', '9883', 'Q']
answer:
Q


question:
1, 7, ['D', 'f', '547', 'r', 'W', '8611', '869', '6649', 'V', '6969', '2731', 'q', '3687', 'q']
answer:
Df547rW8611869


question:
15, 18, ['6535', 'L', 't', '6221', '1723', '8259', 'n', 'H', '8407', 'E', 'v', '9595', 'M', '1613', '5195', 'i', '9049', '5537', '1337', '5403', '1039', 'n', 'i']
answer:

5195i90495537