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:
16, 21, ['O', '951', '1431', 'c', '7377', '623', 'z', '6413', '6679', 'q', 'H', '8827', 'w', 'K', 'A', 's', 'f', 'S', 'i', 'j', '1941']
answer:
sfSij1941


question:
11, 20, ['4081', '915', 'e', '765', '4125', '9603', '1557', 'C', 'L', 'k', 'd', 'h', '5317', 'J', '8587', 'm', 'B', '273', 'K', 'b', '951', '2385', 'v']
answer:
dh5317J8587mB273Kb


question:
3, 8, ['V', 'O', '6747', '2163', 'e', '9513', '237', '7931', 'W', '7655', '8959']
answer:

67472163e95132377931