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, 4, ['6945', 'D', 'a', 's', 'q', 'M']
answer:
6945Das


question:
1, 2, ['f', '6835']
answer:
f6835


question:
4, 11, ['1475', 'w', '2393', '3749', 'y', 'Y', 'u', '9995', '6789', '9355', '9527', '1271', '257', '5197', 'Y', 'V', 'G', 'h', 'e', 'J', '3199', '1995', '7965', 'E', 'W', 'P', '2865', 'A']
answer:

3749yYu9995678993559527