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:
7, 8, ['C', 'W', '7259', 'e', 'O', '6851', '6971', 'q', 'r', 'G', '8919', '3871', '141', 'u', 'R']
answer:
6971q


question:
5, 6, ['4977', 'x', '8747', 'M', '2511', 'O', '1521', 'V', 'R', 'F', 'Q', 'C', '1783', '5325']
answer:
2511O


question:
1, 15, ['M', 'E', '1821', '1085', 'c', '4691', '3727', '6197', 'L', 'k', 'z', '6973', '4967', 'k', '6867']
answer:

ME18211085c469137276197Lkz69734967k6867