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:
9, 19, ['2139', '6849', 'b', '9459', 'v', 'h', 'i', '7977', 'q', 'Z', '7577', 'P', '9971', 'c', '567', 'J', '693', 'N', 'r']
answer:
qZ7577P9971c567J693Nr


question:
19, 23, ['7749', 'H', 'y', '7905', '8567', '3819', '2839', '9145', '4915', 'M', 'U', '7891', '5601', '7109', 'x', 'z', '295', '8709', 'G', 'L', '1297', 'W', '6037', '2479', 'F', '5493', 'Q']
answer:
GL1297W6037


question:
1, 1, ['2469', 'O']
answer:

2469