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.

Let me give you an example: 6, 14, ['9545', '5185', '1667', 'w', 's', '9559', 'T', 'u', 'U', '6843', 'L', 'l', '6365', '7103', 'A', '2381', '5037', 'X', '4487', 'd']
The answer to this example can be: 9559TuU6843Ll63657103
Here is why: Here, concatenating all the elements between the 6th element and 14th element gives '9559TuU6843Ll63657103'.

OK. solve this:
10, 21, ['6433', 'm', 'x', '4083', 'c', 'B', '7109', '3171', 'p', '1725', '2565', '4411', '4497', 'A', 'N', '8799', '3941', 'b', 'B', '189', '5309', '8475', '6965', '341', 'C', 'd', 'o', 'C', 'V']
Answer:
1725256544114497AN87993941bB1895309