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: 10, 10, ['9399', 'p', 'p', 'z', 'E', '4885', 'D', '9037', 'p', '7147', '1835']

Answer: 7147


Question: 4, 8, ['G', 'f', 'x', 'd', '723', 's', 'J', '5709', 'Q', 'K', '4341', '3731', '3705', 'g', 'c', 'u', 'j', '861', '3793', '8695']

Answer: d723sJ5709


Question: 10, 16, ['7861', '6401', 'D', 'a', 'Q', 'e', '177', 'b', 'n', '7735', '4821', 'c', 'L', 'X', '4249', 'n', 'o', '9889', '169', 'R']

Answer:
77354821cLX4249n


