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:
2, 3, ['407', 'S', '8215', '9067']
answer:
S8215


question:
9, 11, ['m', '1761', '8597', 'c', '8553', '1821', '6351', '8039', 'E', '3893', 'E']
answer:
E3893E


question:
12, 23, ['S', 'O', 't', '3367', 'S', '6981', '8567', '4463', '3719', 'e', 'o', '123', '631', 'k', '4285', 'G', 'E', '1861', 'R', 'c', 'S', '3821', '4027', 'K', 'Z', '7187']
answer:

123631k4285GE1861RcS38214027