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, 9, ['3149', '8605', '3995', 'R', '4511', 'W', '9457', 'P', '8439', '1467', 'Y', '7429', 'D', 'R', '4749', '3351', '2555', 'Q', 'F', 'u', '6815', 'B', '4005', '8113', 'A']
answer:
8439


question:
3, 7, ['7005', 'H', '3625', 'e', 'Q', 'P', '4515', 'j', '6807', 'w']
answer:
3625eQP4515


question:
4, 17, ['s', '7247', 'S', 'c', '6701', '8819', '2781', 'j', '2051', 'd', '1363', '6631', 'N', '1017', 'Z', '9997', 'Y', '7873', 's', '8371', '2299', 'J']
answer:

c670188192781j2051d13636631N1017Z9997Y


