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:
7, 9, ['4651', '3055', '3853', 'E', 'K', '2721', '7481', '8579', '4203', 'h']
answer:
748185794203


question:
13, 15, ['e', '7179', 'W', 'k', '9187', 'l', 'w', '4171', '4091', 'C', '8441', 'P', 'b', '6177', '9279', 'L']
answer:
b61779279


question:
3, 4, ['s', 'y', '5015', '1149', '4825', '171', 'Q', '2815', '5881', '9535', 'Y', 'v', 'I', 'F', '5453', '9905', '9661', '9521']
answer:

50151149