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: 2, 10, ['8615', '4155', 'k', '1061', '6223', 'V', '379', '4369', 'n', 'U', 'u', '5007', 'q', 'f']

Answer: 4155k10616223V3794369nU


Question: 18, 18, ['H', '7555', '2635', 'l', 'Y', '6449', 'K', '31', 'A', 'h', 'x', 'G', '4519', 'B', '4221', 'k', 't', 'w', '4167', '5103', '9363', 'g']

Answer: w


Question: 7, 7, ['r', 'D', '9635', '9385', '8971', 'M', 'H', '567', '9607', 'M', '5017', 'k', '3255', 'b', 'm', '6315', '8357', 'C', 'W', '1845', '309', '5251', '9749', '3713', '9103', 'X', 'R']

Answer:
H