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, 15, ['y', '5591', '6581', '7619', '4615', 'S', '5113', '3245', 'q', 'U', '4549', 'v', 'q', '1983', 'b', '3921']
answer:
5591658176194615S51133245qU4549vq1983b


question:
6, 16, ['9967', '2959', 'U', '75', 'd', 'f', 'p', '1077', '4017', 'r', 'Z', '1469', '3795', '8497', '2769', '7569', 'r', '1323', '4505', '6989', '7765', '7523', 'O']
answer:
fp10774017rZ14693795849727697569


question:
10, 18, ['H', 'h', '8149', 'd', 'Z', 'z', '4419', 'o', '2647', '1443', 'f', '1023', 'r', '5415', 'v', '2661', 'i', 'B', '9379', '2693', 'E', 'y']
answer:

1443f1023r5415v2661iB