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:
3, 6, ['5163', 'Z', '4011', '8827', 'P', 'u', 'b', 'a', 'W']
answer:
40118827Pu


question:
2, 19, ['1875', '1645', 'f', '4359', '5897', 'u', '3181', '9335', 'O', '5151', '2197', 'z', '6605', '5271', '2397', 'X', '3139', 't', 'E', 'v', 'z', '677', 'M', 'J', 'O']
answer:
1645f43595897u31819335O51512197z660552712397X3139tE


question:
9, 21, ['x', '1313', '6919', 'h', 'l', 'o', '3119', '9413', '6017', '7425', '4599', 'H', '4783', 'H', '7763', '2973', '3383', '5209', 'l', 'b', '9497', '2023', '2139', '9755', '1899']
answer:

601774254599H4783H7763297333835209lb9497