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: 4, 10, ['C', 'j', 'G', '8415', '3125', 'k', 'Q', '1123', '9153', '727']

84153125kQ11239153727