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:
13, 19, ['N', 'T', '1173', '3569', '8835', '1881', 'q', '9183', 'a', 'b', 'm', 'H', 'e', '4919', '6369', '4213', '9469', '8217', '9333', '8177', 'H']
answer:
e491963694213946982179333


question:
1, 1, ['W', '6149', 'B', 'w', 'd', 'o', '2069', '1509']
answer:
W


question:
1, 3, ['2415', '319', 'S']
answer:

2415319S