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, 15, ['v', 'C', 'z', '9887', '7201', '7843', '1361', 't', 'D', '6885', 'Z', '185', 'A', '3749', 'L', '9919', 'Y', 'e']

78431361tD6885Z185A3749L