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:
1, 3, ['2415', '319', 'S']
answer:
2415319S


question:
17, 20, ['3875', '8841', 'q', 'o', 'v', '6499', 'H', '9749', '3871', 'n', '2605', 'G', '6267', '1405', '623', '6807', 'I', 'h', '8083', '7797']
answer:
Ih80837797


question:
7, 7, ['9351', '6749', 'N', 'Q', '103', 'I', 'S', 'J', '9317']
answer:

S