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, 8, ['p', '7485', '2809', '1217', 'P', '7185', '2899', 'l']
answer:
748528091217P71852899l


question:
4, 14, ['h', 'P', 'u', '419', '8659', 'J', '3273', 's', 'm', '449', 'O', 'b', '9519', '5433', 's', '3921', '7405', 'l', 'q', 'b', '5663', '3063']
answer:
4198659J3273sm449Ob95195433


question:
1, 4, ['o', '2797', '1581', '3793']
answer:

o279715813793