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:
5, 6, ['C', 'z', 'y', '2559', '817', 'A', 'X', 'l', '749', 'B', 'p', '5497', '5577', 'b', '5457', 'G', 'o', 'z']
answer:
817A


question:
7, 10, ['6843', 'X', 's', 'y', 'k', 'o', 'k', '2095', 'b', 'A']
answer:
k2095bA


question:
2, 17, ['6747', '6871', 'g', '1517', 'h', 'q', 'h', '2517', 'w', '6745', 'b', 'X', 'o', '2625', 'u', '8405', '4951', '1811']
answer:

6871g1517hqh2517w6745bXo2625u84054951