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:
15, 26, ['4409', '3509', 'X', '5247', 'Y', '8293', 'U', 'r', 'm', 'W', 'V', '1957', '9837', '995', '691', '3855', '2711', 't', 's', 'e', 'A', 'V', 'J', '9425', 'n', 'X', 'j', '6901', '2617']
answer:
69138552711tseAVJ9425nX

question:
1, 4, ['5753', 'i', 'x', 'E', '1961', '8705', 'l', 'W', '5827', 'N', '3347']
answer:
5753ixE

question:
8, 16, ['9127', 'H', '9961', '5861', '5779', '5027', '2841', 'P', 'Q', '8841', '9351', '9435', '5041', 'd', '9933', '2555']
answer:
PQ8841935194355041d99332555