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:
7, 8, ['2669', 'z', '3795', 'G', 'q', '8169', '6933', '3971', 'q', 'M', 'h', 'd', '2085']
answer:
69333971


question:
10, 20, ['L', 'Z', 'D', '7923', 'e', '9243', 'N', 'e', 'a', '5995', 'h', '2323', 'Q', '4075', '8675', '8713', 'i', 'k', 'B', 'm']
answer:
5995h2323Q407586758713ikBm


question:
2, 8, ['v', 'I', '8717', 'G', '6535', 'D', '3117', 'l', 'R', 'w', '3935', '3459', 'e', '4913', 'b', '4153', '8863', '1431', '251', '6507', 's', 'v', 'C', '8415']
answer:

I8717G6535D3117l