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, 6, ['953', 'a', '9019', 'm', 'E', 's']
answer:
953a9019mEs


question:
1, 2, ['h', 'B']
answer:
hB


question:
1, 6, ['1837', 'H', 'W', 'y', '9697', '9237']
answer:

1837HWy96979237