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: 3, 15, ['F', 'D', 'O', '1267', 'S', '501', 't', '7039', '497', 'O', 'q', 'X', '1913', 'd', '4493', 'r', '9589', 'j', '3407']

O1267S501t7039497OqX1913d4493