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: 7, 15, ['5103', '9193', '8061', 'U', '7567', 'T', '6899', '3537', '2741', 'B', '5787', 't', 'M', 'n', 'Y']

689935372741B5787tMnY