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, 4, ['5237', 'X', '1691', '5405']
answer:
X16915405


question:
3, 12, ['9045', 'p', '9137', '2949', 'K', '2097', 'X', '3633', 'C', '7053', '3049', 'k', '6969', 'M', '1701', 'o', 'U', '2661', '3283', 'a', 's', '9515', 'B', 's', 'k', 'l', 'T']
answer:
91372949K2097X3633C70533049k


question:
4, 5, ['f', 'l', 'g', 'e', '3045', '8203', 'Z', '8945', 'A']
answer:

e3045