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:
4, 16, ['l', 'e', 'g', '1367', '835', 'P', '9523', 'X', 'O', '6423', 'A', 'w', '2597', 'K', '6123', 's', 'c']
answer:
1367835P9523XO6423Aw2597K6123s


question:
1, 11, ['Q', 'z', 'E', '4501', 'G', '4227', 'k', 'Y', '291', 'T', '1347', '6989', 'J', 'T', '7713', 't', '9903', '4703', '7389', '5391', '5111', 'Q', 'k']
answer:
QzE4501G4227kY291T1347


question:
3, 12, ['j', '6269', '7983', '7533', 'z', '1391', '9227', '3229', 'i', '4037', '1951', '9387', '797', '581', 'C', '5627', 'N', '8099', '9275', '9523', '8687', 'c']
answer:

79837533z139192273229i403719519387