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: 1, 7, ['T', 'N', '3869', '3887', '6017', 'N', '4021', '8979', 'e', '13', 'F']

TN386938876017N4021