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, 6, ['E', '9241', 'Q', 'K', '4851', 'I', 'f', 'S', '9973', 'Q', '9429', 'l', '7029', 'm', 'A', 'n', 'k', '1443']

QK4851I