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: 5, 12, ['6961', 'A', '8195', 'D', 'd', '6795', '6717', 'u', 'm', 'G', '2149', '641', '9389', '2175', 'z', 'A', 'g', '7951', '1953']

d67956717umG2149641