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: 7, 10, ['6843', 'X', 's', 'y', 'k', 'o', 'k', '2095', 'b', 'A']

Answer: k2095bA


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: 12, 20, ['U', '7505', 'I', 'W', '5137', 'G', 'H', 'b', '5787', 'j', '8767', '6805', '4719', 'G', '19', 'i', 'y', '2945', 'I', 'p', '4101']

Answer:
68054719G19iy2945Ip