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, 13, ['G', '4913', 'i', 'b', 'Q', '6937', '4251', 'Z', '535', '5563', 'x', '4813', '363', '1985', '3913', 'w', 'o', 'U', 'y']
answer:
Q69374251Z5355563x4813363


question:
6, 18, ['1583', 'k', '8481', 'W', 'E', 'M', 'b', 'N', '3573', 's', '4401', 'g', 'Z', '5311', 'j', '1747', '5435', '4135', '5195', '8781', '3313', '4065', 'N', 'I', '9645', '3581', 'Q', 'u']
answer:
MbN3573s4401gZ5311j174754354135


question:
2, 11, ['u', '6803', 'x', '7837', 'O', '6691', '1183', '8475', 'U', '2417', '8525']
answer:

6803x7837O669111838475U24178525