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: 4, 8, ['P', 'Q', '6941', '4185', '7919', '3247', 'E', 'O', '5759', '1099', '4061', 'j', 'K', 'n', 'U']

418579193247EO