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:
3, 5, ['G', 'r', '3969', '7925', 'M', '7559', 'j', '2069', 'T', '7739', '3101', '4965', 'y', '9787', 'L', 'p', 'w', '4351', '9759', '4195']
answer:
39697925M


question:
1, 2, ['663', '6503']
answer:
6636503


question:
9, 10, ['675', 'C', '9685', '3287', '9075', '9231', '2071', '1143', 'Z', '1939']
answer:

Z1939