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.

[Q]: 2, 20, ['v', 'B', '2287', '1923', 'C', '8477', '4115', '803', '6579', 'u', 'x', 'b', 'J', '4007', '3505', 'M', 'g', 'Z', '2887', 'U', 'S', 'Y', 'i']
[A]: B22871923C847741158036579uxbJ40073505MgZ2887U


[Q]: 3, 4, ['8681', '2115', '9305', '2451']
[A]: 93052451


[Q]: 5, 11, ['W', 'Z', '8093', '5991', 'X', '869', 'X', '6155', '821', '8131', 'n', 'I', '6763', '5957', 'L', 'f', '9825', '6507', 'x', 'Y', 'Q', 'L', 'q']
[A]:
X869X61558218131n