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: 2, 10, ['6719', '7983', 'f', 'H', '3369', 's', 'I', 'f', '1787', '7755', 'o', 'Y', 'm', '6395', '1847', 'a']

7983fH3369sIf17877755