Definition: 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.
Input: 6, 8, ['3397', '8355', 'f', 'A', '2581', '5511', '7389', '1403', '9313', 'y', '4005', 'J', '9405', '2029', 'D', 'I', '21', 'y', '4721', '1085', 'j', '9967', '291']

551173891403